Bumps the known_good_semver group with 2 updates in the / directory:
[serde](https://github.com/serde-rs/serde) and
[serde_json](https://github.com/serde-rs/json).

Updates `serde` from 1.0.204 to 1.0.206
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/serde/releases">serde's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.206</h2>
<ul>
<li>Improve support for <code>flatten</code> attribute inside of enums
(<a
href="https://redirect.github.com/serde-rs/serde/issues/2567">#2567</a>,
thanks <a
href="https://github.com/Mingun"><code>@​Mingun</code></a>)</li>
</ul>
<h2>v1.0.205</h2>
<ul>
<li>Use serialize_entry instead of serialize_key + serialize_value when
serialize flattened newtype enum variants (<a
href="https://redirect.github.com/serde-rs/serde/issues/2785">#2785</a>,
thanks <a
href="https://github.com/Mingun"><code>@​Mingun</code></a>)</li>
<li>Avoid triggering a collection_is_never_read lint in the
deserialization of enums containing flattened fields (<a
href="https://redirect.github.com/serde-rs/serde/issues/2791">#2791</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/85c73ef8dea8966d88a03876e6f0dc9359e68cc9"><code>85c73ef</code></a>
Release 1.0.206</li>
<li><a
href="https://github.com/serde-rs/serde/commit/5ba1796a7e639839d4e18c3ae23b9bb32b0700b5"><code>5ba1796</code></a>
Resolve doc_markdown pedantic lint on regression test function</li>
<li><a
href="https://github.com/serde-rs/serde/commit/e52b7b380f88e0112c9f84e6258bdd34ad132352"><code>e52b7b3</code></a>
Touch up PR 2567</li>
<li><a
href="https://github.com/serde-rs/serde/commit/84c7419652161bf88f88eb26302b26debfff8a8c"><code>84c7419</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2794">#2794</a>
from dtolnay/neverread</li>
<li><a
href="https://github.com/serde-rs/serde/commit/536221b1f93a5dcf97352c7d1e3b93a5a56bf747"><code>536221b</code></a>
Temporarily ignore collection_is_never_read on
FlattenSkipDeserializing</li>
<li><a
href="https://github.com/serde-rs/serde/commit/fc55ac70d34221b38672b1583e496011fbae92aa"><code>fc55ac7</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2567">#2567</a>
from Mingun/fix-2565</li>
<li><a
href="https://github.com/serde-rs/serde/commit/2afe5b4ef9d0e89587ec564eadbc7583fd1f0673"><code>2afe5b4</code></a>
Add regression test for issue <a
href="https://redirect.github.com/serde-rs/serde/issues/2792">#2792</a></li>
<li><a
href="https://github.com/serde-rs/serde/commit/b4ec2595c9dd8e380227043eba42ff85beb780c2"><code>b4ec259</code></a>
Correctly process flatten fields in enum variants</li>
<li><a
href="https://github.com/serde-rs/serde/commit/c3ac7b675a38a73170879992976acb0009834ac0"><code>c3ac7b6</code></a>
Add regression test for issue <a
href="https://redirect.github.com/serde-rs/serde/issues/1904">#1904</a></li>
<li><a
href="https://github.com/serde-rs/serde/commit/24614e44bff5466057e46c55394bac3ae20142c4"><code>24614e4</code></a>
Add regression test for issue <a
href="https://redirect.github.com/serde-rs/serde/issues/2565">#2565</a></li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/serde/compare/v1.0.204...v1.0.206">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_derive` from 1.0.204 to 1.0.206
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/serde/releases">serde_derive's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.206</h2>
<ul>
<li>Improve support for <code>flatten</code> attribute inside of enums
(<a
href="https://redirect.github.com/serde-rs/serde/issues/2567">#2567</a>,
thanks <a
href="https://github.com/Mingun"><code>@​Mingun</code></a>)</li>
</ul>
<h2>v1.0.205</h2>
<ul>
<li>Use serialize_entry instead of serialize_key + serialize_value when
serialize flattened newtype enum variants (<a
href="https://redirect.github.com/serde-rs/serde/issues/2785">#2785</a>,
thanks <a
href="https://github.com/Mingun"><code>@​Mingun</code></a>)</li>
<li>Avoid triggering a collection_is_never_read lint in the
deserialization of enums containing flattened fields (<a
href="https://redirect.github.com/serde-rs/serde/issues/2791">#2791</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/85c73ef8dea8966d88a03876e6f0dc9359e68cc9"><code>85c73ef</code></a>
Release 1.0.206</li>
<li><a
href="https://github.com/serde-rs/serde/commit/5ba1796a7e639839d4e18c3ae23b9bb32b0700b5"><code>5ba1796</code></a>
Resolve doc_markdown pedantic lint on regression test function</li>
<li><a
href="https://github.com/serde-rs/serde/commit/e52b7b380f88e0112c9f84e6258bdd34ad132352"><code>e52b7b3</code></a>
Touch up PR 2567</li>
<li><a
href="https://github.com/serde-rs/serde/commit/84c7419652161bf88f88eb26302b26debfff8a8c"><code>84c7419</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2794">#2794</a>
from dtolnay/neverread</li>
<li><a
href="https://github.com/serde-rs/serde/commit/536221b1f93a5dcf97352c7d1e3b93a5a56bf747"><code>536221b</code></a>
Temporarily ignore collection_is_never_read on
FlattenSkipDeserializing</li>
<li><a
href="https://github.com/serde-rs/serde/commit/fc55ac70d34221b38672b1583e496011fbae92aa"><code>fc55ac7</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2567">#2567</a>
from Mingun/fix-2565</li>
<li><a
href="https://github.com/serde-rs/serde/commit/2afe5b4ef9d0e89587ec564eadbc7583fd1f0673"><code>2afe5b4</code></a>
Add regression test for issue <a
href="https://redirect.github.com/serde-rs/serde/issues/2792">#2792</a></li>
<li><a
href="https://github.com/serde-rs/serde/commit/b4ec2595c9dd8e380227043eba42ff85beb780c2"><code>b4ec259</code></a>
Correctly process flatten fields in enum variants</li>
<li><a
href="https://github.com/serde-rs/serde/commit/c3ac7b675a38a73170879992976acb0009834ac0"><code>c3ac7b6</code></a>
Add regression test for issue <a
href="https://redirect.github.com/serde-rs/serde/issues/1904">#1904</a></li>
<li><a
href="https://github.com/serde-rs/serde/commit/24614e44bff5466057e46c55394bac3ae20142c4"><code>24614e4</code></a>
Add regression test for issue <a
href="https://redirect.github.com/serde-rs/serde/issues/2565">#2565</a></li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/serde/compare/v1.0.204...v1.0.206">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_json` from 1.0.121 to 1.0.124
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/json/releases">serde_json's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.124</h2>
<ul>
<li>Fix a bug in processing string escapes in big-endian architectures
(<a
href="https://redirect.github.com/serde-rs/json/issues/1173">#1173</a>,
thanks <a
href="https://github.com/purplesyringa"><code>@​purplesyringa</code></a>)</li>
</ul>
<h2>v1.0.123</h2>
<ul>
<li>Optimize string parsing by applying SIMD-within-a-register: 30.3%
improvement on <a
href="https://github.com/miloyip/nativejson-benchmark/blob/v1.0.0/data/twitter.json">twitter.json</a>
from 613 MB/s to 799 MB/s (<a
href="https://redirect.github.com/serde-rs/json/issues/1161">#1161</a>,
thanks <a
href="https://github.com/purplesyringa"><code>@​purplesyringa</code></a>)</li>
</ul>
<h2>v1.0.122</h2>
<ul>
<li>Support using <code>json!</code> in no-std crates (<a
href="https://redirect.github.com/serde-rs/json/issues/1166">#1166</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/json/commit/cf771a0471dd797b6fead77e767f2f7943740c98"><code>cf771a0</code></a>
Release 1.0.124</li>
<li><a
href="https://github.com/serde-rs/json/commit/8b314a77bf57ad8d6089536fea1b3c3b303cba92"><code>8b314a7</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1173">#1173</a>
from iex-rs/fix-big-endian</li>
<li><a
href="https://github.com/serde-rs/json/commit/8eba7863b126584f4b9a5b1d3cc4cbc0d0f59976"><code>8eba786</code></a>
Fix skip_to_escape on BE architectures</li>
<li><a
href="https://github.com/serde-rs/json/commit/2cab07e68607ab0e11c3a8b0461a472c37886210"><code>2cab07e</code></a>
Release 1.0.123</li>
<li><a
href="https://github.com/serde-rs/json/commit/346189a524694b98b92ccccb07775868d34b144c"><code>346189a</code></a>
Fix needless_borrow clippy lint in new control character test</li>
<li><a
href="https://github.com/serde-rs/json/commit/859ead8e6d60f4eaed97f7ac2b18f879bec5afe5"><code>859ead8</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1161">#1161</a>
from iex-rs/vectorized-string-parsing</li>
<li><a
href="https://github.com/serde-rs/json/commit/e43da5ee0e64819972f08254e8ce799796238791"><code>e43da5e</code></a>
Immediately bail-out on empty strings</li>
<li><a
href="https://github.com/serde-rs/json/commit/8389d8a11293616ce5a4358651aede271871248d"><code>8389d8a</code></a>
Don't run the slow algorithm from the beginning</li>
<li><a
href="https://github.com/serde-rs/json/commit/1f0dcf791ab1756d7ad07c20889e50bd9a7887fb"><code>1f0dcf7</code></a>
Allow clippy::items_after_statements</li>
<li><a
href="https://github.com/serde-rs/json/commit/a95d6df9d08611c9a11ac6524903d693921b8eae"><code>a95d6df</code></a>
Big endian support</li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/json/compare/v1.0.121...v1.0.124">compare
view</a></li>
</ul>
</details>
<br />


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