[ALL] Cache gradle dependencies

Author: cedricziel

.github/workflows/gradle.yml

@@ -20,9 +20,9 @@ jobs:
       ORG_GRADLE_PROJECT_customUntilBuild: "${{ matrix.until_build }}"
 
     runs-on: ubuntu-latest
-    
+
     strategy:
-      matrix: 
+      matrix:
         include:
         - idea_version: "IU-2020.2"
           php_plugin_version: "202.6397.94"
@@ -37,6 +37,12 @@ jobs:
       uses: actions/setup-java@v1
       with:
         java-version: 1.8
+    - name: Cache Gradle packages
+      uses: actions/cache@v2
+      with:
+        path: ~/.gradle/caches
+        key: ${{ runner.os }}-${{ matrix.idea_version }}-${{ matrix.php_plugin_version }}-gradle-${{ hashFiles('**/*.gradle') }}
+        restore-keys: ${{ runner.os }}-gradle
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: Build with Gradle