Update actions in CI workflow

Use latest Gradle actions, which use Node.js 20.

Signed-off-by: thc202 <[email protected]>

Author: thc202

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
-      - uses: gradle/wrapper-validation-action@v1
-      - uses: gradle/gradle-build-action@v2
+      - uses: gradle/wrapper-validation-action@v2
+      - uses: gradle/actions/setup-gradle@v3
       - run: ./gradlew assemble
       - run: ./gradlew check