Bump actions/checkout from 4.2.1 to 4.2.2 (#20)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.1 to 4.2.2.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@eef6144...11bd719)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/dart.yml

@@ -20,7 +20,7 @@ jobs:
           - stable
           - beta
     steps:
-      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
         with:
           submodules: true
       - uses: dart-lang/setup-dart@0a8a0fc875eb934c15d08629302413c671d3f672