Support SemVer only for model versions

What does this MR do and why?

By enforcing semver, we will be able to add features for the model registry, like automatic update of models. We can only do this now, since this feature hasn't been released yet, and we call rollback this later, but supporting semver once this feature is out will be much harder.

This is a new feature, there are 0 instances of the affected classes in production, and it is still behind a feature flag

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #418012 (closed)