Failed spotbugs run should suggest rerun with SECURE_LOG_LEVEL variable to get more info

Proposal

Spotbugs-sast, when it runs and fails, has only very limited output. That makes issues very hard to diagnose, as the actual problem is probably not available in the logs.

Spotbugs-sast does however obey the log level as set by SECURE_LOG_LEVEL. This can be set through either the UI (Settings -> CI/CD -> variables), or gitlab-ci.yaml.

It would be really nice if the Spotbugs-sast tool could detect it failed (the 'exit status 1' is a good indicator for that) and suggest setting the SECURE_LOG_LEVEL to DEBUG in the UI or gitlab-ci for more information, if it is not on DEBUG already.

It would also be nice if the documentation has perhaps a more prominent notification of this possibility.