Bumps [ref-cast](https://github.com/dtolnay/ref-cast) from 1.0.20 to
1.0.23.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/ref-cast/releases">ref-cast's
releases</a>.</em></p>
<blockquote>
<h2>1.0.23</h2>
<ul>
<li>Resolve unexpected_cfgs warning (<a
href="https://redirect.github.com/dtolnay/ref-cast/issues/47">#47</a>)</li>
</ul>
<h2>1.0.22</h2>
<ul>
<li>Update proc-macro2 to fix caching issue when using a rustc-wrapper
such as sccache</li>
</ul>
<h2>1.0.21</h2>
<ul>
<li>Support <code>forbid(unsafe_code)</code> (<a
href="https://redirect.github.com/dtolnay/ref-cast/issues/45">#45</a>,
thanks <a href="https://github.com/yuja"><code>@​yuja</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/06c520cd555920951cc1939fcb0c5d855b61134c"><code>06c520c</code></a>
Release 1.0.23</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/fd3256dcce6afe7204792f09fc8b227b208b00fc"><code>fd3256d</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/ref-cast/issues/47">#47</a>
from dtolnay/checkcfg</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/473dc818a94318524a56600891e50d181e3d6b8a"><code>473dc81</code></a>
Resolve unexpected_cfgs warning</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/b4d78e28708129fcc413cbd1555b95f542d40551"><code>b4d78e2</code></a>
Revert &quot;Temporarily disable miri on doctests&quot;</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/24de24e13da1cc179f1646fd078dee36b288f4ff"><code>24de24e</code></a>
Resolve legacy_numeric_constants clippy lints</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/33b0b8f8a40a501345551a97bde7951cc0e93564"><code>33b0b8f</code></a>
Update ui test suite to nightly-2024-03-31</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/bd301af5205224a5670e460e8bc94ecff2a3ca66"><code>bd301af</code></a>
Explicitly install a Rust toolchain for cargo-outdated job</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/b747bf79ed48d3138ccb8fa2a88bbff9bed56ad2"><code>b747bf7</code></a>
Temporarily disable miri on doctests</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/0b59588839a5725f942b44eed94ff0a5f2e1477f"><code>0b59588</code></a>
Raise minimum tested compiler to 1.70</li>
<li><a
href="https://github.com/dtolnay/ref-cast/commit/ad5cadba6b700bb3647ef0f31954f55ef27d4fc1"><code>ad5cadb</code></a>
Update ui test suite to nightly-2024-03-06</li>
<li>Additional commits viewable in <a
href="https://github.com/dtolnay/ref-cast/compare/1.0.20...1.0.23">compare
view</a></li>
</ul>
</details>
<br />


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