Publish release to catalog command

Problem to solve

All details: CI/CD Catalog - Release & publish v2.0 (&12788)

Proposal

Add a new flag; glab release create 1.0.0 --publish-to-catalog.

Further details

Previous approach; Add PublishToCatalog command (release-cli!184 - closed)

Links / references

Main issue: Backend: `glab` to extract and validate metadata (gitlab#442785 - closed)