Add include_rebase_in_progress to list MR endpoints

Problem to solve

Current behavior between list and single MR endpoint is inconsistent. In particular, list endpoints do not accept include_rebase_in_progress parameter, while single MR does.

As an API user I want to be able to get Merge Requests with include_rebase_in_progress parameter from project/group/general list endpoints (see https://docs.gitlab.com/ee/api/merge_requests.html#list-merge-requests)

Intended users

Further details

Proposal

Add include_rebase_in_progress as accepted parameter for list endpoints

Permissions and Security

Documentation

Testing

What does success look like, and how can we measure that?

include_rebase_in_progress parameter is present in API response from list endpoints when include_rebase_in_progress: True is present in request parameters

Links / references