Add option to skip CI when creating a new branch via Gitlab API
### Proposal Add option to the [Branches](https://docs.gitlab.com/ee/api/branches.html) API endpoint to skip CI when creating a new branch. Ideally, I'd like to be able to create a branch using the Branches API endpoint, but not activate any CI pipelines which may exist as part of the new branch creation. Something like: `curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/projects/5/repository/branches?branch=newbranch&ref=main&skip_ci=true"`
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