Bump actions/checkout from 4.1.0 to 4.1.1 (#154)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.0 to 4.1.1.
<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>v4.1.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Update CODEOWNERS to Launch team by <a href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1510">actions/checkout#1510</a></li>
<li>Correct link to GitHub Docs by <a href="https://github.com/peterbe"><code>@​peterbe</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1511">actions/checkout#1511</a></li>
<li>Link to release page from what's new section by <a href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1514">actions/checkout#1514</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/joshmgross"><code>@​joshmgross</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1510">actions/checkout#1510</a></li>
<li><a href="https://github.com/peterbe"><code>@​peterbe</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1511">actions/checkout#1511</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v4.1.0...v4.1.1">https://github.com/actions/checkout/compare/v4.1.0...v4.1.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/checkout/commit/b4ffde65f46336ab88eb53be808477a3936bae11"><code>b4ffde6</code></a> Link to release page from what's new section (<a href="https://redirect.github.com/actions/checkout/issues/1514">#1514</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/8530928916aaef40f59e6f221989ccb31f5759e7"><code>8530928</code></a> Correct link to GitHub Docs (<a href="https://redirect.github.com/actions/checkout/issues/1511">#1511</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/7cdaf2fbc075e6f3b9ca94cfd6cec5adc8a75622"><code>7cdaf2f</code></a> Update CODEOWNERS to Launch team (<a href="https://redirect.github.com/actions/checkout/issues/1510">#1510</a>)</li>
<li>See full diff in <a href="https://github.com/actions/checkout/compare/8ade135a41bc03ea155e62e844d188df1ea18608...b4ffde65f46336ab88eb53be808477a3936bae11">compare view</a></li>
</ul>
</details>
<br />

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/checkout&package-manager=github_actions&previous-version=4.1.0&new-version=4.1.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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</details>
diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index 5adce77..e3dce6c 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -22,7 +22,7 @@
       matrix:
         sdk: [dev]
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
       - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1
         with:
           sdk: ${{ matrix.sdk }}
@@ -44,7 +44,7 @@
         os: [ubuntu-latest]
         sdk: [3.0.0, dev]
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
       - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1
         with:
           sdk: ${{ matrix.sdk }}