chore(deps): bump actions/checkout from 4.1.2 to 4.1.3

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.2 to 4.1.3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@9bb5618...1d96c77)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/unit_tests.yaml

@@ -17,7 +17,7 @@ jobs:
   unit_tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
+      - uses: actions/checkout@1d96c772d19495a3b5c517cd2bc0cb401ea0529f # v4.1.3
       - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 # v1.6.2
       - name: dart pub get
         run: dart pub get