Bump actions/checkout from 4 to 6 (flutter#8960)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/checkout/releases">actions/checkout's releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update README to include Node.js 24 support details and requirements by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2248">actions/checkout#2248</a></li>
<li>Persist creds to a separate file by <a href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2286">actions/checkout#2286</a></li>
<li>v6-beta by <a href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2298">actions/checkout#2298</a></li>
<li>update readme/changelog for v6 by <a href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2311">actions/checkout#2311</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v5.0.0...v6.0.0">https://github.com/actions/checkout/compare/v5.0.0...v6.0.0</a></p>
<h2>v6-beta</h2>
<h2>What's Changed</h2>
<p>Updated persist-credentials to store the credentials under <code>$RUNNER_TEMP</code> instead of directly in the local git config.</p>
<p>This requires a minimum Actions Runner version of <a href="https://github.com/actions/runner/releases/tag/v2.329.0">v2.329.0</a> to access the persisted credentials for <a href="https://docs.github.com/en/actions/tutorials/use-containerized-services/create-a-docker-container-action">Docker container action</a> scenarios.</p>
<h2>v5.0.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Port v6 cleanup to v5 by <a href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2301">actions/checkout#2301</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v5...v5.0.1">https://github.com/actions/checkout/compare/v5...v5.0.1</a></p>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update actions checkout to use node 24 by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2226">actions/checkout#2226</a></li>
<li>Prepare v5.0.0 release by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2238">actions/checkout#2238</a></li>
</ul>
<h2>⚠️ Minimum Compatible Runner Version</h2>
<p><strong>v2.327.1</strong><br />
<a href="https://github.com/actions/runner/releases/tag/v2.327.1">Release Notes</a></p>
<p>Make sure your runner is updated to this version or newer to use this release.</p>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v4...v5.0.0">https://github.com/actions/checkout/compare/v4...v5.0.0</a></p>
<h2>v4.3.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Port v6 cleanup to v4 by <a href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2305">actions/checkout#2305</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v4...v4.3.1">https://github.com/actions/checkout/compare/v4...v4.3.1</a></p>
<h2>v4.3.0</h2>
<h2>What's Changed</h2>
<ul>
<li>docs: update README.md by <a href="https://github.com/motss"><code>@​motss</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1971">actions/checkout#1971</a></li>
<li>Add internal repos for checking out multiple repositories by <a href="https://github.com/mouismail"><code>@​mouismail</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1977">actions/checkout#1977</a></li>
<li>Documentation update - add recommended permissions to Readme by <a href="https://github.com/benwells"><code>@​benwells</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/2043">actions/checkout#2043</a></li>
</ul>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/checkout/commit/de0fac2e4500dabe0009e67214ff5f5447ce83dd"><code>de0fac2</code></a> Fix tag handling: preserve annotations and explicit fetch-tags (<a href="https://redirect.github.com/actions/checkout/issues/2356">#2356</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/064fe7f3312418007dea2b49a19844a9ee378f49"><code>064fe7f</code></a> Add orchestration_id to git user-agent when ACTIONS_ORCHESTRATION_ID is set (...</li>
<li><a href="https://github.com/actions/checkout/commit/8e8c483db84b4bee98b60c0593521ed34d9990e8"><code>8e8c483</code></a> Clarify v6 README (<a href="https://redirect.github.com/actions/checkout/issues/2328">#2328</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/033fa0dc0b82693d8986f1016a0ec2c5e7d9cbb1"><code>033fa0d</code></a> Add worktree support for persist-credentials includeIf (<a href="https://redirect.github.com/actions/checkout/issues/2327">#2327</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/c2d88d3ecc89a9ef08eebf45d9637801dcee7eb5"><code>c2d88d3</code></a> Update all references from v5 and v4 to v6 (<a href="https://redirect.github.com/actions/checkout/issues/2314">#2314</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/1af3b93b6815bc44a9784bd300feb67ff0d1eeb3"><code>1af3b93</code></a> update readme/changelog for v6 (<a href="https://redirect.github.com/actions/checkout/issues/2311">#2311</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/71cf2267d89c5cb81562390fa70a37fa40b1305e"><code>71cf226</code></a> v6-beta (<a href="https://redirect.github.com/actions/checkout/issues/2298">#2298</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/069c6959146423d11cd0184e6accf28f9d45f06e"><code>069c695</code></a> Persist creds to a separate file (<a href="https://redirect.github.com/actions/checkout/issues/2286">#2286</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493"><code>ff7abcd</code></a> Update README to include Node.js 24 support details and requirements (<a href="https://redirect.github.com/actions/checkout/issues/2248">#2248</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/08c6903cd8c0fde910a37f88322edcfb5dd907a8"><code>08c6903</code></a> Prepare v5.0.0 release (<a href="https://redirect.github.com/actions/checkout/issues/2238">#2238</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/actions/checkout/compare/v4...v6">compare view</a></li>
</ul>
</details>
<br />

Author: dependabot[bot]

.github/workflows/presubmit.yaml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: build
         run: ./tool/github.sh
   checker:
@@ -31,7 +31,7 @@ jobs:
         bot: [CHECK_BOT, DART_BOT, UNIT_TEST_BOT, VERIFY_BOT]
     steps:
       - name: checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: Linux ${{ matrix.bot }}
         run: ./tool/github.sh
         env:

.github/workflows/update_flutter.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           token: ${{ secrets.FLUTTERACTIONSBOT_CP_TOKEN }}