Auto merge of #26688 - servo:dependabot/cargo/tokio-codec-0.1.2, r=jdm
Auto merge of #26688 - servo:dependabot/cargo/tokio-codec-0.1.2, r=jdm

Bump tokio-codec from 0.1.0 to 0.1.2

Bumps [tokio-codec](https://github.com/tokio-rs/tokio) from 0.1.0 to 0.1.2.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/tokio-rs/tokio/commit/571a48255e2576e8fab9e17753f1f13f08d8efe8"><code>571a482</code></a> Bump to 0.1.2</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/ba1951583388f614205fafd1972f0e853b4bd077"><code>ba19515</code></a> Clarify a comment</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/a21153a0e959120978cc6c818ce5b5f61f530416"><code>a21153a</code></a> Clear out old <code>Signal</code> on drop</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/83a5277af1477c309bcb462551a52a924c4efa7e"><code>83a5277</code></a> Touch up more impls and comments</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/b748fa955c980e494d7af6e53dc35113629afb05"><code>b748fa9</code></a> Handle a few more errors</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/277fff43f5862ffa1a99f3133a5522a0aa2fcfcf"><code>277fff4</code></a> Various cleanups:</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/a02a38fbae15f43f7c7868637fca2161f784f8f7"><code>a02a38f</code></a> The driver task</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/f7167b48a7407127fdd1fc280a078f465f55d195"><code>f7167b4</code></a> Provide the new kind of Signal stream</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/8abc26df39a995ca9e8895a0807abe02507722dd"><code>8abc26d</code></a> Implement the wake-up part of the new signal handling</li>
<li><a href="https://github.com/tokio-rs/tokio/commit/b9da819153e13f670d3211affcacc89d1834b090"><code>b9da819</code></a> Use tokio-core from git</li>
<li>Additional commits viewable in <a href="https://github.com/tokio-rs/tokio/compare/tokio-codec-0.1.0...0.1.2">compare view</a></li>
</ul>
</details>
<br />

[![Dependabot compatibility score](https://api.dependabot.com/badges/compatibility_score?dependency-name=tokio-codec&package-manager=cargo&previous-version=0.1.0&new-version=0.1.2)](https://dependabot.com/compatibility-score/?dependency-name=tokio-codec&package-manager=cargo&previous-version=0.1.0&new-version=0.1.2)

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