Add users exclusion to rate limit on issues creation
Iteration for https://gitlab.com/gitlab-org/gitlab/-/issues/55241
A rate limit for issues creation was introduced in !28130 (merged) and !28129 (merged).
It was suggested in https://gitlab.com/gitlab-org/gitlab/-/issues/55241#note_302615797 to add the ability to whitelist users and exempt them from this limit. This can be especially useful when we have accounts performing automated actions in bulk that might require a higher amount of requests.
Edited by Eugenia Grieff