Update GHActions workflows

.github/workflows/buildAndRelease.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v2
         with:
-          java-version: '17'
+          java-version: '21'
       - name: Build with Gradle
         run: |
           chmod +x ./gradlew
@@ -45,7 +45,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v2
         with:
-          java-version: '17'
+          java-version: '21'
       - name: Build the Docker image
         run: ./gradlew bootBuildImage --no-daemon --info --stacktrace