chore(ci): use gradle/actions/setup-gradle for setting up gradle

Author: trivikr

.github/workflows/codegen-ci.yml

@@ -22,15 +22,18 @@ jobs:
 
     steps:
       - uses: actions/checkout@v5
-      - uses: gradle/actions/wrapper-validation@v4
 
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v5
         with:
           java-version: ${{ matrix.java }}
           distribution: 'corretto'
-          cache: gradle
-      
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v5
+        with:
+          cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
+
       - name: build and publish smithy-typescript
         run: |
           node ./scripts/generate-clients/build-smithy-typescript-ci.js