Optimize Android CI dependency caching

.github/workflows/android-build.yml

@@ -23,12 +23,27 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
 
+      - name: Set up Java
+        uses: actions/setup-java@v5
+        with:
+          distribution: temurin
+          java-version: '17'
+          cache: gradle
+
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
         with:
           channel: stable
           cache: true
 
+      - name: Cache Pub packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.pub-cache
+          key: ${{ runner.os }}-pub-${{ hashFiles('**/pubspec.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-pub-
+
       - name: Flutter version
         run: flutter --version
 
@@ -61,12 +76,27 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
 
+      - name: Set up Java
+        uses: actions/setup-java@v5
+        with:
+          distribution: temurin
+          java-version: '17'
+          cache: gradle
+
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
         with:
           channel: stable
           cache: true
 
+      - name: Cache Pub packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.pub-cache
+          key: ${{ runner.os }}-pub-${{ hashFiles('**/pubspec.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-pub-
+
       - name: Get dependencies
         run: flutter pub get