Geo - Add geo_handler_after_create hook to all replicable models

The following discussion from !130565 (merged) should be addressed:

• @mkozono started a discussion: (+1 comment)

  question (non-blocking): Just checking my understanding. Is this functionality covered by https://gitlab.com/gitlab-org/gitlab/-/blob/04639f0bcb5adc5f438586ca41a0228b07aac23a/ee/app/models/concerns/geo/replicable_model.rb#L12?