chore: Use cache in continuous-integration-workflow.yml

Signed-off-by: jongwooo <jongwooo.han@gmail.com>

.github/workflows/continuous-integration-workflow.yml

@@ -55,6 +55,7 @@ jobs:
         with:
           java-version: '11'
           distribution: 'adopt'
+          cache: 'gradle'
       - name: Set up Gradle
         uses: gradle/gradle-build-action@v2
       - name: Set up gradle user name