Bump auto-value-annotations from 1.8.2 to 1.9

Bumps [auto-value-annotations](https://github.com/google/auto) from 1.8.2 to 1.9.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/google/auto/releases">auto-value-annotations's releases</a>.</em></p>
<blockquote>
<h2>AutoValue 1.9</h2>
<ul>
<li>The <code>@autobuilder</code> annotation documented <a href="https://github.com/google/auto/blob/master/value/userguide/autobuilder.md">here</a> is now fully stable and supported. (1f8d7f26)
<ul>
<li>AutoBuilder now uses annotation defaults when building a call to an <code>@AutoAnnotation</code> method. (fb96c836)</li>
</ul>
</li>
<li>Making a step-builder for AutoValue is now easier because the inherited setters don't need to be restated in the <code>Builder</code> class so that they return <code>Builder</code>. (0820e2e2)</li>
<li>We now handle better the case where an annotation being copied references a missing class. (e0740327)</li>
<li>The order of annotations copied into generated code is now deterministic. (8ad800ed)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/google/auto/commit/d26281e822ecd6e616889569e57c9166ecf22184"><code>d26281e</code></a> Set version number for auto-value-parent to 1.9.</li>
<li><a href="https://github.com/google/auto/commit/f7a8b8042df89742e6b150a166d90c75e7b2f283"><code>f7a8b80</code></a> Add a <code>\&lt;developers&gt;</code> section to <code>auto/value/pom.xml</code>.</li>
<li><a href="https://github.com/google/auto/commit/7dfa54165a3da99f41de69ca259282001ddea3e7"><code>7dfa541</code></a> Copy the <code>oss-parent</code> configuration into <code>value/pom.xml</code>.</li>
<li><a href="https://github.com/google/auto/commit/000b10c37c94b8f8b3ba1abc35b5d586181be378"><code>000b10c</code></a> Add a <code>\&lt;distributionManagement&gt;</code> clause to the parent POM for AutoValue and A...</li>
<li><a href="https://github.com/google/auto/commit/07f37b2be9e060f57eed3e3f5cdccab6a53f0927"><code>07f37b2</code></a> Disallow <code>@autovalue final class</code>.</li>
<li><a href="https://github.com/google/auto/commit/8a1d7263784327db25dd0ea943b1541a751416a5"><code>8a1d726</code></a> Remove references to obsolete <code>AutoBuilderIsUnstable</code> option.</li>
<li><a href="https://github.com/google/auto/commit/a74508b7eac6254f8e00cf5d3634a10c690e058d"><code>a74508b</code></a> Validate that <code>@autovalue</code> (etc) classes have appropriate constructors.</li>
<li><a href="https://github.com/google/auto/commit/1f8d7f26bf4b0613a8602085cae77f15693ab086"><code>1f8d7f2</code></a> Make <code>@autobuilder</code> available unconditionally.</li>
<li><a href="https://github.com/google/auto/commit/0b21d83b085e39e41ee8b7a725a446ca652f9923"><code>0b21d83</code></a> Bump actions/cache from 2.1.6 to 2.1.7</li>
<li><a href="https://github.com/google/auto/commit/7e1ec07a91ba72b61851dddc86be3e7b9743e162"><code>7e1ec07</code></a> Bump mockito-core from 4.0.0 to 4.1.0 in /value</li>
<li>Additional commits viewable in <a href="https://github.com/google/auto/compare/auto-value-1.8.2...auto-value-1.9">compare view</a></li>
</ul>
</details>
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</details>

Fixes #931

COPYBARA_INTEGRATE_REVIEW=#931 from google:dependabot/maven/com.google.auto.value-auto-value-annotations-1.9 8f11bbd
PiperOrigin-RevId: 416551465

pom.xml

@@ -23,7 +23,7 @@
     <maven-enforcer-plugin.version>3.0.0</maven-enforcer-plugin.version>
 
     <!-- Properties for multiple-artifact deps. -->
-    <auto-value.version>1.8.2</auto-value.version>
+    <auto-value.version>1.9</auto-value.version>
     <!--
       We have a separate property for each flavor of Guava (instead of a shared
       version without the -android and -jre suffixes) because that lets