Bump actions/checkout from 3.5.0 to 3.5.2 (#27)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.5.0 to 3.5.2.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@8f4b7f8...8e5e7e5)

---
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>

Author: dependabot[bot]

.github/workflows/dart.yaml

@@ -36,7 +36,7 @@ jobs:
         working-directory: pkgs/${{ matrix.package }}
 
     steps:
-      - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
+      - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
 
       - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f
         with: