Update gradle.yml

.github/workflows/gradle.yml

@@ -16,10 +16,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 14
+      - name: Set up JDK 17
         uses: actions/setup-java@v1
         with:
-          java-version: 14.0.2
+          java-version: 17.0.2
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew
       - name: Build with Gradle