ci: adds missing gradle dependencies caching to CI

Author: baywet

.github/workflows/api-level-lint.yml

@@ -16,6 +16,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: 20
+          cache: gradle
       - name: Setup Android SDK
         uses: android-actions/[email protected]
       - name: Add execution right to the script