Fix Imixs SonarQube execution due to Java 8 incompatibility
It seems that latest version of SonarQube Maven plugin required Java 11 and build is done on Java 8.
- Run build on Java 11 if project support it
- Force (in GitLab CI job definition or in project if include in project
pom.xml) SonarQube Maven plugin version to a version that support Java 8
- Something else?