Sigmon 186 create backup

Context

• Story reminder : https://its.cern.ch/jira/browse/SIGMON-186
• Create backup releases of the pro venv

What was done

• keypoints of the implementation / code changes

• Introduce the timestamp of the pipeline
• Introduce the Release notes

• Could be improved

• Should we delete the previous backups ?

Review objectives

• assessment of code functionality
• assessment of code quality
• identifying potential refactorings / logic common to other projects
• knowledge sharing