Bump dart-lang/setup-dart from 1.6.0 to 1.6.2

Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 1.6.0 to 1.6.2.
- [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@b64355a...fedb126)

---
updated-dependencies:
- dependency-name: dart-lang/setup-dart
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.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@b64355ae6ca0b5d484f0106a033dd1388965d06d
+        uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3
         with:
           sdk: stable
       - name: Activate Webdev

.github/workflows/daily_testing.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup Dart SDK
-        uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
+        uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3
         with:
           sdk: main
       - id: checkout

.github/workflows/dcm.yml

@@ -22,7 +22,7 @@ jobs:
           sudo apt-get install dcm
           sudo chmod +x /usr/bin/dcm
       - name: Setup Dart SDK
-        uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
+        uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3
         with:
           sdk: dev
       - id: checkout

.github/workflows/release_reminder.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup Dart SDK
-        uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
+        uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3
         with:
           sdk: dev
       - id: checkout