Bump io.netty:netty-bom from 4.2.7.Final to 4.2.9.Final (#468)

Bumps [io.netty:netty-bom](https://github.com/netty/netty) from
4.2.7.Final to 4.2.9.Final.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="a853a399b5"><code>a853a39</code></a>
[maven-release-plugin] prepare release netty-4.2.9.Final</li>
<li><a
href="6d29a4f343"><code>6d29a4f</code></a>
Add missing publishing config for the bom module</li>
<li><a
href="ea911deea6"><code>ea911de</code></a>
Optimize HTTP startline validation (<a
href="https://redirect.github.com/netty/netty/issues/16030">#16030</a>)</li>
<li><a
href="d7108a36bb"><code>d7108a3</code></a>
LocalChannel: Reduce GC by re-using same Runnable (<a
href="https://redirect.github.com/netty/netty/issues/16014">#16014</a>)</li>
<li><a
href="207afcbbc7"><code>207afcb</code></a>
Fix MpscIntQueue bug (<a
href="https://redirect.github.com/netty/netty/issues/16023">#16023</a>)</li>
<li><a
href="27bfd56461"><code>27bfd56</code></a>
Fix HTTP startline validation (<a
href="https://redirect.github.com/netty/netty/issues/16022">#16022</a>)</li>
<li><a
href="40ab4184d8"><code>40ab418</code></a>
[maven-release-plugin] prepare for next development iteration</li>
<li><a
href="e2d9d11c67"><code>e2d9d11</code></a>
[maven-release-plugin] prepare release netty-4.2.8.Final</li>
<li><a
href="2f2e437f10"><code>2f2e437</code></a>
Merge commit from fork</li>
<li><a
href="d011634cf2"><code>d011634</code></a>
Build fixes to allow using the epoll native transport on Android (<a
href="https://redirect.github.com/netty/netty/issues/16016">#16016</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/netty/netty/compare/netty-4.2.7.Final...netty-4.2.9.Final">compare
view</a></li>
</ul>
</details>
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gradle/libs.versions.toml

@@ -5,7 +5,7 @@ dokka = "2.1.0"
 atomicfu = "0.29.0"
 ktlint = "14.0.1"
 kover = "0.9.4"
-netty = "4.2.7.Final"
+netty = "4.2.9.Final"
 mavenPublish = "0.35.0"
 binaryCompatibilityValidatorPlugin = "0.18.1"
 openapi-generator = "7.18.0"