Simple Github action to build flutter project

mobile.yaml

name: Mobile

on:
  workflow_dispatch:
  push:
    branches: [master]

permissions:
  contents: read
  pull-requests: read

jobs:
  android_build:
    name: Android Mobile Build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Install Java
        uses: actions/setup-java@v3
        with:
          distribution: "zulu"
          java-version: "12.x"

      - name: Install Flutter
        uses: subosito/flutter-action@v2
        with:
          flutter-version: "3.13.0"
          channel: "stable"

      - name: Install Dependencies
        run: flutter pub get

      - name: Build Android app
        run: flutter build apk

      - name: "Tar files"
        run: tar -cvf artifacts.tar build/app/outputs/flutter-apk/*.apk

      - name: Upload Android apk
        uses: actions/upload-artifact@v3
        with:
          name: artifacts
          retention-days: 1
          path: artifacts.tar

  android_staging_deploy:
    name: Android Mobile Deploy
    needs: android_build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Download Artifacts
        uses: actions/download-artifact@v3
        with:
          name: artifacts

      - name: Untar Artifacts
        run: tar -xvf artifacts.tar

      - id: auth
        uses: "google-github-actions/auth@v1"
        with:
          credentials_json: "${{ secrets.FIREBASE_SA }}"

      - name: "Set up Cloud SDK"
        uses: "google-github-actions/setup-gcloud@v1"

      - id: message
        name: Get commit message
        run: echo message=$(git tag -l --format='%(contents)'${REF}) >> "$GITHUB_OUTPUT"
        env:
          REF: ${{ github.event.push.after }}

      - name: Install firebase
        run: npm install -g firebase-tools

        # Deploy to only staging users
      - name: Deploy Android app to Firebase app distribution
        env:
          message: ${{ steps.message.outputs.message }}
        run: |
          firebase appdistribution:distribute build/app/outputs/flutter-apk/app-release.apk \
              --project=<example> \
              --app hello \
              --release-notes "$message" \
              --groups "staging, admin"