[RUN AS-IF-FOSS] Fix merge request approvals for EE without license
What does this MR do?
When an EE version doesn't have a license, it should behave as FOSS version. This MR calls FOSS method in order to check whether a user is eligible to approve a merge request. Without this fix, EE method is called which takes rules, whether a user is a committer/author and other checks into account.
Related issue: #230458 (closed)
Edited by Igor Drozdov