Adjust GitHub workflows

Author: daohoangson

.github/workflows/demo_app.yml

@@ -28,6 +28,7 @@ jobs:
         uses: subosito/flutter-action@fd55f4c5af5b953cc57a2be44cb082c8f6635e8e # v2.21.0
         with:
           cache: true
+          flutter-version: 3.22.0
       - uses: gradle/actions/setup-gradle@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4.4.1
       - run: echo JAVA_HOME=$JAVA_HOME_17_X64 >> $GITHUB_ENV
 

.github/workflows/flutter.yml

@@ -31,6 +31,7 @@ jobs:
         uses: subosito/flutter-action@fd55f4c5af5b953cc57a2be44cb082c8f6635e8e # v2.21.0
         with:
           cache: true
+          flutter-version: 3.22.0
 
       # TODO: investigate why this fail on GitHub Actions
       # - run: dart format --set-exit-if-changed --output none .

.github/workflows/flutter_beta.yml

@@ -23,6 +23,7 @@ jobs:
         uses: subosito/flutter-action@fd55f4c5af5b953cc57a2be44cb082c8f6635e8e # v2.21.0
         with:
           cache: true
+          flutter-version: 3.22.0
       - uses: gradle/actions/setup-gradle@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4.4.1
         with:
           # only update gradle cache from demo_app.yml jobs
@@ -70,6 +71,7 @@ jobs:
         uses: subosito/flutter-action@fd55f4c5af5b953cc57a2be44cb082c8f6635e8e # v2.21.0
         with:
           cache: true
+          flutter-version: 3.22.0
 
       - name: Unlock Fastlane secrets
         env: