chore(deps): update subosito/flutter-action action to v2.8.0 (#39)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build-example.yml

@@ -25,7 +25,7 @@ jobs:
           distribution: 'zulu'
           java-version: '11'
 
-      - uses: subosito/flutter-action@v2.7.1
+      - uses: subosito/flutter-action@v2.8.0
         with:
           channel: ${{ matrix.channel }}
 

.github/workflows/flutter.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - uses: subosito/flutter-action@v2.7.1
+      - uses: subosito/flutter-action@v2.8.0
         with:
           channel: ${{ matrix.channel }}