Bump actions/labeler from 3 to 4 (#4134)

Bumps [actions/labeler](https://github.com/actions/labeler) from 3 to 4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/labeler/releases">actions/labeler's releases</a>.</em></p>
<blockquote>
<h2>v4.0.0</h2>
<ul>
<li><a href="https://github-redirect.dependabot.com/actions/labeler/pull/319"> Update to node 16 runtime</a></li>
</ul>
<h2>v3.1.0</h2>
<p>Dependency upgrades, docs updates, and behind-the-scenes maintenance.</p>
<p>See the full list of changes since 3.0.2 here: <a href="https://github.com/actions/labeler/compare/v3.0.2...v3.1.0">https://github.com/actions/labeler/compare/v3.0.2...v3.1.0</a></p>
<p>Thanks to <a href="https://github.com/GisoBartels"><code>@​GisoBartels</code></a> and <a href="https://github.com/Muhammed-Rahif"><code>@​Muhammed-Rahif</code></a> for their contributions!</p>
<h2>v3.0.2</h2>
<p>No API changes, but lots of behind-the-scenes upgrades, mostly to internal dependencies, tooling, and surrounding infrastructure.</p>
<h2>v3.0.1</h2>
<p>No user-facing changes.</p>
<p>That said, there were more than enough behind-the-scenes changes to warrant a new release: <a href="https://github.com/actions/labeler/compare/v3.0.0...v3.0.1">https://github.com/actions/labeler/compare/v3.0.0...v3.0.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="9fd24f1f9d"><code>9fd24f1</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/actions/labeler/issues/334">#334</a> from actions/thboop/updatetov4</li>
<li><a href="abae52fa24"><code>abae52f</code></a> Update to new v4 release</li>
<li><a href="e1132f5ed5"><code>e1132f5</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/actions/labeler/issues/319">#319</a> from actions/thboop/node16update</li>
<li><a href="b0cc574b25"><code>b0cc574</code></a> Update build_test.yml</li>
<li><a href="c48e531900"><code>c48e531</code></a> Update default runtime to node16</li>
<li>See full diff in <a href="https://github.com/actions/labeler/compare/v3...v4">compare view</a></li>
</ul>
</details>
<br />


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</details>

.github/workflows/label.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/labeler@v3
+    - uses: actions/labeler@v4
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
         configuration-path: .github/label-config.yml