fix(pipeline): Switch to gradle action

.gitea/workflows/pipeline.yaml

@@ -131,16 +131,10 @@ jobs:
           distribution: 'temurin'
           java-version: '21'
 
-      - name: Setup Gradle cache
-        uses: actions/cache@v4
+      - name: Setup Gradle
+        uses: gradle/gradle-build-action@v2
         with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-            legalconsenthub-backend/.gradle
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
-          restore-keys: |
-            ${{ runner.os }}-gradle-
+          gradle-version: wrapper
 
       - name: Make gradlew executable
         run: chmod +x gradlew