Update build.yml

.github/workflows/build.yml

@@ -7,9 +7,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 11
+      - name: Set up JDK 17
         uses: actions/setup-java@v1
         with:
-          java-version: 11
+          java-version: 17
       - name: Build with Gradle
         run: ./gradlew build