Bumps [once_cell](https://github.com/matklad/once_cell) from 1.9.0 to 1.10.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/matklad/once_cell/blob/master/CHANGELOG.md">once_cell's changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>1.11</h2>
<ul>
<li>Add <code>OnceCell::with_value</code> to create initialized <code>OnceCell</code> at compile time.</li>
<li>Improve <code>Clone</code> implementation for <code>OnceCell</code>.</li>
</ul>
<h2>1.10</h2>
<ul>
<li>upgrade <code>parking_lot</code> to <code>0.12.0</code> (note that this bumps MSRV with <code>parking_lot</code> feature enabled to <code>1.49.0</code>).</li>
</ul>
<h2>1.9</h2>
<ul>
<li>Added an <code>atomic-polyfill</code> optional dependency to compile <code>race</code> on platforms without atomics</li>
</ul>
<h2>1.8.0</h2>
<ul>
<li>Add <code>try_insert</code> API -- a version of <code>set</code> that returns a reference.</li>
</ul>
<h2>1.7.2</h2>
<ul>
<li>Improve code size when using parking_lot feature.</li>
</ul>
<h2>1.7.1</h2>
<ul>
<li>Fix <code>race::OnceBox<T></code> to also impl <code>Default</code> even if <code>T</code> doesn't impl <code>Default</code>.</li>
</ul>
<h2>1.7.0</h2>
<ul>
<li>Hide the <code>race</code> module behind (default) <code>race</code> feature.
Turns out that adding <code>race</code> by default was a breaking change on some platforms without atomics.
In this release, we make the module opt-out.
Technically, this is a breaking change for those who use <code>race</code> with <code>no_default_features</code>.
Given that the <code>race</code> module itself only several days old, the breakage is deemed acceptable.</li>
</ul>
<h2>1.6.0</h2>
<ul>
<li>Add <code>Lazy::into_value</code></li>
<li>Stabilize <code>once_cell::race</code> module for "first one wins" no_std-compatible initialization flavor.</li>
<li>Migrate from deprecated <code>compare_and_swap</code> to <code>compare_exchange</code>.</li>
</ul>
<h2>1.5.2</h2>
<ul>
<li><code>OnceBox</code> API uses <code>Box<T></code>.
This a breaking change to unstable API.</li>
</ul>
<h2>1.5.1</h2>
<ul>
<li>MSRV is increased to <code>1.36.0</code>.</li>
<li>document <code>once_cell::race</code> module.</li>
</ul>
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</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="c3a3ede16d"><code>c3a3ede</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/174">#174</a></li>
<li><a href="c3f11bb8bc"><code>c3f11bb</code></a> Bump version and add a changelog entry for parking_lot upgrade.</li>
<li><a href="8737ec3713"><code>8737ec3</code></a> Upgrade parking_lot.</li>
<li><a href="64ef4a0f32"><code>64ef4a0</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/172">#172</a></li>
<li><a href="99cc25cb93"><code>99cc25c</code></a> Switch badge to GitHub Actions and remove outdated file references</li>
<li><a href="68b2d76703"><code>68b2d76</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/169">#169</a></li>
<li><a href="abd4c788df"><code>abd4c78</code></a> Fix typo</li>
<li><a href="dd8ff8aeff"><code>dd8ff8a</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/168">#168</a></li>
<li><a href="7a5fca7b54"><code>7a5fca7</code></a> doc: fix a typo</li>
<li>See full diff in <a href="https://github.com/matklad/once_cell/compare/v1.9.0...v1.10.0">compare view</a></li>
</ul>
</details>
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