CI: Add release workflow

.github/workflows/pull_request.yaml

@@ -1,76 +0,0 @@
-name: Pull Request Workflow
-
-on: [pull_request]
-
-env:
-  FLUTTER_VERSION: ${{ secrets.FLUTTER_VERSION }}
-  JAVA_VERSION: ${{ secrets.JAVA_VERSION }}
-
-jobs:
-  analyze:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
-        with:
-          java-version: ${{ env.JAVA_VERSION }}
-      - uses: subosito/flutter-action@v2
-        with:
-          flutter-version: ${{ env.FLUTTER_VERSION }}
-      - run: flutter pub get
-      - name: Check formatting
-        run: dart format lib/ test/ --set-exit-if-changed
-      - name: Check import formatting
-        run: dart run import_sorter:main --no-comments --exit-if-changed
-      - run: flutter analyze
-      - name: Apply google services patch
-        run: git apply ./scripts/enable-android-google-services.patch
-      - run: flutter analyze
-      - run: flutter test
-
-  build_debug_apk:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
-        with:
-          java-version: ${{ env.JAVA_VERSION }}
-      - uses: subosito/flutter-action@v2
-        with:
-          flutter-version: ${{ env.FLUTTER_VERSION }}
-      - run: flutter pub get
-      - run: flutter build apk --debug
-
-  build_debug_web:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
-        with:
-          java-version: ${{ env.JAVA_VERSION }}
-      - uses: subosito/flutter-action@v2
-        with:
-          flutter-version: ${{ env.FLUTTER_VERSION }}
-      - run: flutter pub get
-      - name: Prepare web
-        run: ./scripts/prepare-web.sh
-      - run: flutter build web
-
-  build_debug_linux:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        arch: [x64, arm64]
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
-        with:
-          java-version: ${{ env.JAVA_VERSION }}
-      - uses: subosito/flutter-action@v2
-        with:
-          flutter-version: ${{ env.FLUTTER_VERSION }}
-      - name: Install dependencies
-        run: sudo apt-get update && sudo apt-get install curl clang cmake ninja-build pkg-config libgtk-3-dev libblkid-dev liblzma-dev libjsoncpp-dev cmake-data libsecret-1-dev libsecret-1-0 librhash0 -y
-      - run: flutter pub get
-      - run: flutter build linux
-