[Artifacts] Fix artifacts output test (mlrun#2040)

[Runtimes] Fix "pass" mode, add a way to pass task params into comman…

…d line, enhance Mpijob runtime (mlrun#992)

[Feature store] Remove all infer aliases, keep only preview (mlrun#995)

[Projects] Don't fail initialization on projects sync failure (mlrun#…

…1008)

[Projects] Wait for completion by default and use session from reques…

…t (instead of configured one) (mlrun#1000)

[Model endpoints] Fix create or patch to inject run db to get the end…

…point model (mlrun#996)

[Docs] Bump docs docker image tag to 0.6.4 (mlrun#993)

[Feature store] Fix bug in online features with multiple entities (ml…

…run#990)

[Docs] Enhance spark ingestion example (mlrun#989)

[DB] Retry operation when database is locked (mlrun#981)