[MNG-7893] Allow versioning the superpom according to the model version

[jira-importer]

Guillaume Nodet opened MNG-7893 and commented

Given we now allow the model version to change, it would make sense to actually define one superpom for each model version.
This would allow changing that superpom without impacting previous versions.
So a 4.1.0 superpom will be introduced.

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Remote Links:

• GitHub Pull Request #1253
  
• GitHub Pull Request #1290
  

Backported to: 4.0.0-alpha-8