[CI] Add a npm unpublish action to GH

[markov00]

To avoid having a manual unpublish process for bad/wrong published packages, we can create a simple GH Action that:

• is triggered manually (you can specify the tag directly from there) (we need to be sure to not specify a branch, but just the tag)
• checks if is possible to unpublish the tag
• if not just deprecate the tag