ci: cache gradle files

Author: artus9033

.github/workflows/ci.yml

@@ -67,6 +67,16 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-tester-android-build-
 
+      - name: Resture Gradle cache
+        uses: actions/cache@v5
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-tester-integrated-android-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-tester-integrated-android-gradle-
+
       - name: Build integrated Android tester app
         run: yarn run build:tester-integrated:android