Merge branch '456119-add-missing-arguments-for-creating-epic-work-item-via-graphql' into 'master'

Add color and health status GraphQL arguments for creating a work item

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/149536



Merged-by: Jan Provaznik <jprovaznik@gitlab.com>
Approved-by: Abhilash Kotte <akotte@gitlab.com>
Approved-by: Peter Leitzen <pleitzen@gitlab.com>
Approved-by: Jan Provaznik <jprovaznik@gitlab.com>
Reviewed-by: Jan Provaznik <jprovaznik@gitlab.com>
Co-authored-by: Eugenia Grieff <egrieff@gitlab.com>