Bump dokka-gradle-plugin from 1.5.30 to 1.5.31 (#2938)

Summary:
Bumps [dokka-gradle-plugin](https://github.com/Kotlin/dokka) from 1.5.30 to 1.5.31.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/Kotlin/dokka/releases">dokka-gradle-plugin's releases</a>.</em></p>
<blockquote>
<h2>1.5.31 Alpha</h2>
<p>Changes:</p>
<ul>
<li>Support Kotlin 1.5.31</li>
<li>Support JS KLib</li>
<li>Fix link to a javadoc enum entry</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="eb43d787d5"><code>eb43d78</code></a> Regenerate api dump</li>
<li><a href="f91c6fe0af"><code>f91c6fe</code></a> Bump dokka version to 1.5.31</li>
<li><a href="bd53dcd2dc"><code>bd53dcd</code></a> Bump gradle to 7.2 (<a href="https://github-redirect.dependabot.com/Kotlin/dokka/issues/2144">https://github.com/facebook/flipper/issues/2144</a>)</li>
<li><a href="16423a00b8"><code>16423a0</code></a> Bump to Kotlin 1.5.31</li>
<li><a href="755c0dfa52"><code>755c0df</code></a> Support JS KLib (<a href="https://github-redirect.dependabot.com/Kotlin/dokka/issues/2159">https://github.com/facebook/flipper/issues/2159</a>)</li>
<li><a href="7bea7d1834"><code>7bea7d1</code></a> Fix whitespaces inside <code>link</code> tag (<a href="https://github-redirect.dependabot.com/Kotlin/dokka/issues/2156">https://github.com/facebook/flipper/issues/2156</a>)</li>
<li><a href="c4205226ab"><code>c420522</code></a> Fix link to javadoc enum entry (<a href="https://github-redirect.dependabot.com/Kotlin/dokka/issues/2131">https://github.com/facebook/flipper/issues/2131</a>)</li>
<li>See full diff in <a href="https://github.com/Kotlin/dokka/compare/v1.5.30...v1.5.31">compare view</a></li>
</ul>
</details>
<br />

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</details>

Pull Request resolved: https://github.com/facebook/flipper/pull/2938

Reviewed By: muraziz

Differential Revision: D31502056

Pulled By: passy

fbshipit-source-id: 12c1aa6ea7f930a769cc2f0233b56c9aa7990a1f

build.gradle

@@ -14,7 +14,7 @@ buildscript {
         classpath 'com.android.tools.build:gradle:4.2.2'
         classpath 'com.vanniktech:gradle-maven-publish-plugin:0.18.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$KOTLIN_VERSION"
-        classpath "org.jetbrains.dokka:dokka-gradle-plugin:1.5.30"
+        classpath "org.jetbrains.dokka:dokka-gradle-plugin:1.5.31"
     }
 }