Apply changes in terms of release procedure

[MV88]

Description

• After the call had with devops I am providing some new changes to the release procedure since some jobs and logic has changed

• Also providing lint fixes

Please check if the PR fulfills these requirements

• [ ] The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• [ ] Tests for the changes have been added (for bug fixes / features)
• [x] Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• [ ] Bugfix
• [ ] Feature
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Other... Please describe:

Issue

What is the current behavior?

procedure is not correct especially in stable release part

What is the new behavior?

procedure has changed and aligned with new jenkins

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• [ ] Yes, and I documented them in migration notes
• [x] No

Other useful information