Auto merge of #26504 - servo:dependabot/cargo/libc-0.2.70, r=jdm

Bump libc from 0.2.62 to 0.2.70

Bumps [libc](https://github.com/rust-lang/libc) from 0.2.62 to 0.2.70.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/rust-lang/libc/releases">libc's releases</a>.</em></p>
<blockquote>
<h2>0.2.70</h2>
<p>Bump patch version to 0.2.70</p>
<h2>0.2.69</h2>
<p>Bump patch version to 0.2.69</p>
<h2>0.2.68</h2>
<p>Bump patch version to 0.2.68</p>
<h2>0.2.67</h2>
<p>Bump patch version to 0.2.67</p>
<h2>0.2.66</h2>
<p>No release notes provided.</p>
<h2>0.2.65</h2>
<p>No release notes provided.</p>
<h2>0.2.64</h2>
<p>No release notes provided.</p>
<h2>0.2.63 (yanked)</h2>
<p>No release notes provided.</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="b61d8c617a"><code>b61d8c6</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/rust-lang/libc/issues/1758">#1758</a> from tblah/version-0.2.70</li>
<li><a href="88cfeb1a4c"><code>88cfeb1</code></a> Bump version to 0.2.70</li>
<li><a href="87de9103f5"><code>87de910</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/rust-lang/libc/issues/1752">#1752</a> from JohnTitor/i686-2004</li>
<li><a href="cf63ea1002"><code>cf63ea1</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/rust-lang/libc/issues/1587">#1587</a> from Susurrus/termios_breaks_consts</li>
<li><a href="23d73d5983"><code>23d73d5</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/rust-lang/libc/issues/1753">#1753</a> from overdrivenpotato/psp</li>
<li><a href="524ec8f2f5"><code>524ec8f</code></a> Add TIOCSBRK/TIOCCBRK to more supported platforms</li>
<li><a href="d44f9b7ef9"><code>d44f9b7</code></a> Reorder consts for sparc64 to match header</li>
<li><a href="5dfe01320f"><code>5dfe013</code></a> Add c typedefs for the Sony PSP</li>
<li><a href="ecfd7a3d01"><code>ecfd7a3</code></a> Update Ubuntu image to 20.04</li>
<li><a href="bb734e321f"><code>bb734e3</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/rust-lang/libc/issues/1754">#1754</a> from JohnTitor/armeabi</li>
<li>Additional commits viewable in <a href="https://github.com/rust-lang/libc/compare/0.2.62...0.2.70">compare view</a></li>
</ul>
</details>
<br />

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[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

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</details>

Cargo.lock

@@ -3011,9 +3011,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.62"
+version = "0.2.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
+checksum = "3baa92041a6fec78c687fa0cc2b3fae8884f743d672cf551bed1d6dac6988d0f"
 
 [[package]]
 name = "libdbus-sys"