Service to delete model versions

What does this MR do and why?

Depends on !134908 (merged)

• Introduces a service to delete model version by project, name and version
• End goal, implement https://mlflow.org/docs/2.6.0/rest-api.html#delete-modelversion

Screenshots or screen recordings

None, purely backend

How to set up and validate locally

1. Enable the feature flag

   Feature.enable(:model_registry)

2. Create a model version with some package using the API (fill in $GLAB_TOKEN and $PROJECT_ID):

   curl  --header "Authorization:$GLAB_TOKEN" --upload-file blah.txt "http://localhost:3000/api/v4/projects/$PROJECT_ID/packages/ml_models/blah2/1.1.0/blah.txt"

3. Delete the model version using the service on console:

   u = User.find_by(id: 1) # or the user that created the model version
   p = Project.find_by(id: 1) # or the $PROJECT_ID used above
   ::Ml::ModelVersions::DeleteService.new(p, 'blah2', '1.1.0', u).execute

Database

Query

DELETE FROM "ml_model_versions"
WHERE "ml_model_versions"."id" = 1

Local explain analyze

Delete on ml_model_versions  (cost=0.15..2.17 rows=0 width=0) (actual time=0.013..0.013 rows=0 loops=1)
  ->  Index Scan using ml_model_versions_pkey on ml_model_versions  (cost=0.15..2.17 rows=1 width=6) (actual time=0.011..0.012 rows=0 loops=1)
        Index Cond: (id = 1)
Planning Time: 0.098 ms
Execution Time: 0.034 ms

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.