Bump the known_good_semver group with 3 updates (#5402)

Bumps the known_good_semver group with 3 updates:
[serde](https://github.com/serde-rs/serde),
[serde_derive](https://github.com/serde-rs/serde) and
[serde_json](https://github.com/serde-rs/json).

Updates `serde` from 1.0.206 to 1.0.208
<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>v1.0.208</h2>
<ul>
<li>Support serializing and deserializing unit structs in a
<code>flatten</code> field (<a
href="https://redirect.github.com/serde-rs/serde/issues/2802">#2802</a>,
thanks <a
href="https://github.com/jonhoo"><code>@​jonhoo</code></a>)</li>
</ul>
<h2>v1.0.207</h2>
<ul>
<li>Improve interactions between <code>flatten</code> attribute and
<code>skip_serializing</code>/<code>skip_deserializing</code> (<a
href="https://redirect.github.com/serde-rs/serde/issues/2795">#2795</a>,
thanks <a
href="https://github.com/Mingun"><code>@​Mingun</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/026e91a68cdb00ed89bae5f566852ecbd7525315"><code>026e91a</code></a>
Release 1.0.208</li>
<li><a
href="https://github.com/serde-rs/serde/commit/bfbedac91940b7cbe268bf686b93812b3020129c"><code>bfbedac</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2802">#2802</a>
from jonhoo/flatten-unit-struct</li>
<li><a
href="https://github.com/serde-rs/serde/commit/4036ff88edc2ee85f288e8c9bc6d9a0f393cf96e"><code>4036ff8</code></a>
Support (de-)serializing flattened unit struct</li>
<li><a
href="https://github.com/serde-rs/serde/commit/1b4da41f970555e111f471633205bbcb4dadbc63"><code>1b4da41</code></a>
Release 1.0.207</li>
<li><a
href="https://github.com/serde-rs/serde/commit/f61d452814d6c7bf32d139e747d18c21592d702a"><code>f61d452</code></a>
Touch up PR 2795</li>
<li><a
href="https://github.com/serde-rs/serde/commit/f9866097a084e2e549e40c4d47f7ee171e0a6aaf"><code>f986609</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2795">#2795</a>
from Mingun/has-flatten-rework</li>
<li><a
href="https://github.com/serde-rs/serde/commit/77a6a9d4e193c82439aa0c35dfdbbb34fafdf38e"><code>77a6a9d</code></a>
Take into account only not skipped flatten fields when choose
serialization form</li>
<li><a
href="https://github.com/serde-rs/serde/commit/547d843ccaa1349b074991f5ceeda722cf245824"><code>547d843</code></a>
Remove dead code - serialize_struct_as_map always called when
cattrs.has_flat...</li>
<li><a
href="https://github.com/serde-rs/serde/commit/005cb84593e73cb3ba263232cc5f09b77859ec5b"><code>005cb84</code></a>
Fail with an understandable message is number of fields for
serialization is ...</li>
<li><a
href="https://github.com/serde-rs/serde/commit/fd5b5e9aa561e29d9312ecef2019ec670b4bc334"><code>fd5b5e9</code></a>
Correctly calculate <code>has_flatten</code> attribute in all cases for
deserialization</li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/serde/compare/v1.0.206...v1.0.208">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_derive` from 1.0.206 to 1.0.208
<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>v1.0.208</h2>
<ul>
<li>Support serializing and deserializing unit structs in a
<code>flatten</code> field (<a
href="https://redirect.github.com/serde-rs/serde/issues/2802">#2802</a>,
thanks <a
href="https://github.com/jonhoo"><code>@​jonhoo</code></a>)</li>
</ul>
<h2>v1.0.207</h2>
<ul>
<li>Improve interactions between <code>flatten</code> attribute and
<code>skip_serializing</code>/<code>skip_deserializing</code> (<a
href="https://redirect.github.com/serde-rs/serde/issues/2795">#2795</a>,
thanks <a
href="https://github.com/Mingun"><code>@​Mingun</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/026e91a68cdb00ed89bae5f566852ecbd7525315"><code>026e91a</code></a>
Release 1.0.208</li>
<li><a
href="https://github.com/serde-rs/serde/commit/bfbedac91940b7cbe268bf686b93812b3020129c"><code>bfbedac</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2802">#2802</a>
from jonhoo/flatten-unit-struct</li>
<li><a
href="https://github.com/serde-rs/serde/commit/4036ff88edc2ee85f288e8c9bc6d9a0f393cf96e"><code>4036ff8</code></a>
Support (de-)serializing flattened unit struct</li>
<li><a
href="https://github.com/serde-rs/serde/commit/1b4da41f970555e111f471633205bbcb4dadbc63"><code>1b4da41</code></a>
Release 1.0.207</li>
<li><a
href="https://github.com/serde-rs/serde/commit/f61d452814d6c7bf32d139e747d18c21592d702a"><code>f61d452</code></a>
Touch up PR 2795</li>
<li><a
href="https://github.com/serde-rs/serde/commit/f9866097a084e2e549e40c4d47f7ee171e0a6aaf"><code>f986609</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2795">#2795</a>
from Mingun/has-flatten-rework</li>
<li><a
href="https://github.com/serde-rs/serde/commit/77a6a9d4e193c82439aa0c35dfdbbb34fafdf38e"><code>77a6a9d</code></a>
Take into account only not skipped flatten fields when choose
serialization form</li>
<li><a
href="https://github.com/serde-rs/serde/commit/547d843ccaa1349b074991f5ceeda722cf245824"><code>547d843</code></a>
Remove dead code - serialize_struct_as_map always called when
cattrs.has_flat...</li>
<li><a
href="https://github.com/serde-rs/serde/commit/005cb84593e73cb3ba263232cc5f09b77859ec5b"><code>005cb84</code></a>
Fail with an understandable message is number of fields for
serialization is ...</li>
<li><a
href="https://github.com/serde-rs/serde/commit/fd5b5e9aa561e29d9312ecef2019ec670b4bc334"><code>fd5b5e9</code></a>
Correctly calculate <code>has_flatten</code> attribute in all cases for
deserialization</li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/serde/compare/v1.0.206...v1.0.208">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_json` from 1.0.124 to 1.0.125
<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>1.0.125</h2>
<ul>
<li>Speed up \uXXXX parsing and improve handling of unpaired surrogates
when deserializing to bytes (<a
href="https://redirect.github.com/serde-rs/json/issues/1172">#1172</a>,
<a
href="https://redirect.github.com/serde-rs/json/issues/1175">#1175</a>,
thanks <a
href="https://github.com/purplesyringa"><code>@​purplesyringa</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/json/commit/6130f9b358dea483f10e671343f0098fbe55611b"><code>6130f9b</code></a>
Release 1.0.125</li>
<li><a
href="https://github.com/serde-rs/json/commit/cc7a1608c9bb7736c884926e016421af41a1ebe7"><code>cc7a160</code></a>
Touch up PR 1175</li>
<li><a
href="https://github.com/serde-rs/json/commit/0f942e5b5235a3b586e20e4c00bfe5b1a56f16d8"><code>0f942e5</code></a>
Merge pull request 1175 from iex-rs/faster-backslash-u</li>
<li><a
href="https://github.com/serde-rs/json/commit/d8921cd29b5eef6263c20cf87eab25d961237f94"><code>d8921cd</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1172">#1172</a>
from iex-rs/faster-hex</li>
<li><a
href="https://github.com/serde-rs/json/commit/b4bc6436acdf874729a7b425b3c2e48f8b16b398"><code>b4bc643</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1176">#1176</a>
from dtolnay/miriname</li>
<li><a
href="https://github.com/serde-rs/json/commit/94a2aad7b79543454da3ecdb2e6170b98773ccc2"><code>94a2aad</code></a>
Improve job names for miri jobs</li>
<li><a
href="https://github.com/serde-rs/json/commit/8073fc16b89f508f2443b95d925ce59dca745d43"><code>8073fc1</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1174">#1174</a>
from iex-rs/miri-on-ci</li>
<li><a
href="https://github.com/serde-rs/json/commit/96ae60445df67f6903b53b2fcfe1d60f3bd8f778"><code>96ae604</code></a>
Correct WTF-8 parsing</li>
<li><a
href="https://github.com/serde-rs/json/commit/236cc8247d32a5cb337850d75f68265fdb4bc14e"><code>236cc82</code></a>
Simplify unicode escape handling</li>
<li><a
href="https://github.com/serde-rs/json/commit/2f28d106e68e214cfa19043e65b1bd178b3c2ced"><code>2f28d10</code></a>
Use the same UTF-8/WTF-8 impl for surrogates</li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/json/compare/v1.0.124...1.0.125">compare
view</a></li>
</ul>
</details>
<br />


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