Incorrect list filters in `gitlab project-merge-request-approval-rule list`

### Discussed in https://github.com/python-gitlab/python-gitlab/discussions/2132

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<sup>Originally posted by **MaximeCheramy** July  7, 2022</sup>
The GitLab API doesn't seem to have a name option: https://docs.gitlab.com/ee/api/merge_request_approvals.html#get-merge-request-level-rules</div>