Bump maven-site-plugin from 3.11.0 to 3.12.0
Bump maven-site-plugin from 3.11.0 to 3.12.0

Bumps [maven-site-plugin](https://github.com/apache/maven-site-plugin) from 3.11.0 to 3.12.0.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/apache/maven-site-plugin/commit/8c597d8db03633feb010cacb2a036b1cceb29aee"><code>8c597d8</code></a> [maven-release-plugin] prepare release maven-site-plugin-3.12.0</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/32be6ad8b99916dec6f908484f2d690044bf0b47"><code>32be6ad</code></a> [MSITE-888] Upgrade to Maven 3.2.5</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/bf434e5d0e37ce85392a96587ad2f4ec58c63641"><code>bf434e5</code></a> [MSITE-891] Upgrade plugins in ITs</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/5f10ad146fec988f892a56b82b83e5c41ede3604"><code>5f10ad1</code></a> [MSITE-890] Upgrade Jetty to 9.4.46.v20220331</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/606a327097202f3f90bfd60e66a7c4cb6a53d004"><code>606a327</code></a> [MSITE-857] Jetty engine fails to resolve web.xml DTD behind corporate proxy</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/522eddd70e4b822d8a14eba845c94b3f88edef7e"><code>522eddd</code></a> [MSITE-889] Upgrade Plexus Utils to 3.3.1</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/d1bfb429cc41a79fbbeaed3fa725fbcb9cd9285d"><code>d1bfb42</code></a> [MSITE-887] Deprecate templateFile parameter</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/6c42df388a5b8f50fe6e35ec4d74cb5981a13831"><code>6c42df3</code></a> Add undeclared dependency</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/73df7bb9e0f9c2e421e79a8733302d557fa1b0ad"><code>73df7bb</code></a> Remove unused properties</li>
<li><a href="https://github.com/apache/maven-site-plugin/commit/7a3ed19c5ff6339615b997d97dcfbae926dfbad1"><code>7a3ed19</code></a> [MSITE-886] Upgrade Maven Wagon to 3.5.1</li>
<li>Additional commits viewable in <a href="https://github.com/apache/maven-site-plugin/compare/maven-site-plugin-3.11.0...maven-site-plugin-3.12.0">compare view</a></li>
</ul>
</details>
<br />

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</details>

Fixes #318

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/compile-testing/pull/318 from google:dependabot/maven/org.apache.maven.plugins-maven-site-plugin-3.12.0 a4307c0bc3454828c993caff285e02a6525997d7
PiperOrigin-RevId: 444285174

google/compile-testing