Draft: Added DRAFT option in __EXAMPLES for short runtime to improve testing
Added DRAFT option in examples for short runtime. This allows the unittests to be executed within 2 min. instead of >10 min. Therefore, the GitLab testing pipeline is extended to test Python version 3.8-3.12.
Tests will definitely fail without !55 (merged). Thus its a required merge. Potentially, when testing against all Python versions, more bugs will appear to be resolved.