SonarQube requires later Java version

Author: simasch

.github/workflows/build.yml

@@ -40,10 +40,10 @@ jobs:
       - name: Install demo project
         run: sh ${{ github.workspace }}/scripts/2_install_demo_project.sh
 
-      - name: Set up JDK 11
+      - name: Set up JDK 17
         uses: actions/setup-java@v2
         with:
-          java-version: '8'
+          java-version: '17'
           distribution: 'adopt'
           server-id: ossrh
           server-username: MAVEN_USERNAME