Misc improvements + CI/CD fix

Author: dima-xd

.github/workflows/master.yaml

@@ -5,6 +5,9 @@ on:
     branches:
       - master
 
+permissions:
+  actions: write
+
 jobs:
   build-and-deploy:
     runs-on: ubuntu-latest
@@ -35,7 +38,8 @@ jobs:
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: 'stable'
+          channel: 'stable'
+          flutter-version-file: pubspec.yaml
 
       - name: Install dependencies
         run: flutter pub get

pubspec.yaml

@@ -6,6 +6,7 @@ version: 1.0.0+1
 
 environment:
   sdk: ^3.8.1
+  flutter: 3.32.8
 
 dependencies:
   flutter: