add actions for automatically publishing apk on github

.github/workflows/flutter_release.yaml

@@ -0,0 +1,64 @@
+name: Flutter Release Workflow
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set Up Java
+        uses: actions/setup-java@v3.12.0
+        with:
+          distribution: "oracle"
+          java-version: "17"
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: "3.24.1"
+          channel: "stable"
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      # - name: Run tests
+      #   run: flutter test
+
+      - name: Build APK
+        run: flutter build apk --release
+
+      - name: Upload APK
+        uses: actions/upload-artifact@v2
+        with:
+          name: release-apk
+          path: build/app/outputs/flutter-apk/app-release.apk
+
+  release:
+    runs-on: ubuntu-latest
+    needs: build
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Generate Release Notes
+        id: generate_release_notes
+        uses: release-drafter/release-drafter@v5
+        with:
+          config-name: release-drafter.yml
+
+      - name: Create GitHub Release
+        uses: ncipollo/release-action@v1
+        with:
+          artifacts: build/app/outputs/flutter-apk/app-release.apk
+          token: ${{ secrets.GITHUB_TOKEN }}
+          name: Release ${{ github.ref }}
+          tag: ${{ github.ref }}
+          # body: ${{ steps.generate_release_notes.outputs.notes }}