Bump the github-actions group across 1 directory with 3 updates

Bumps the github-actions group with 3 updates in the / directory: [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart), [actions/cache](https://github.com/actions/cache) and [actions/stale](https://github.com/actions/stale).


Updates `dart-lang/setup-dart` from 1.7.0 to 1.7.1
- [Release notes](https://github.com/dart-lang/setup-dart/releases)
- [Changelog](https://github.com/dart-lang/setup-dart/blob/main/CHANGELOG.md)
- [Commits](dart-lang/setup-dart@e630b99...e51d8e5)

Updates `actions/cache` from 4.2.0 to 4.2.2
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@1bd1e32...d4323d4)

Updates `actions/stale` from 9.0.0 to 9.1.0
- [Release notes](https://github.com/actions/stale/releases)
- [Changelog](https://github.com/actions/stale/blob/main/CHANGELOG.md)
- [Commits](actions/stale@28ca103...5bef64f)

---
updated-dependencies:
- dependency-name: dart-lang/setup-dart
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: github-actions
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: github-actions
- dependency-name: actions/stale
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

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

Author: dependabot[bot]

Diff for: .github/workflows/daily_stable_testing.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up stable Dart SDK
-        uses: dart-lang/setup-dart@e630b99d28a3b71860378cafdc2a067c71107f94
+        uses: dart-lang/setup-dart@e51d8e571e22473a2ddebf0ef8a2123f0ab2c02c
         with:
           sdk: stable
       - name: Activate Webdev

Diff for: .github/workflows/daily_testing.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup Dart SDK
-        uses: dart-lang/setup-dart@e630b99d28a3b71860378cafdc2a067c71107f94
+        uses: dart-lang/setup-dart@e51d8e571e22473a2ddebf0ef8a2123f0ab2c02c
         with:
           sdk: main
       - id: checkout