<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=519344) </details> <!--IssueSummary end--> Add new v2 approval rule associations to protected branches for new approval rule architecture. Update the associations for v2 approval rules accordingly. Both tables will need to have a defined sharding key similar to https://gitlab.com/gitlab-org/gitlab/-/merge_requests/179861. For reference consult the new architecture in the [Architecture Design Document](https://handbook.gitlab.com/handbook/engineering/architecture/design-documents/rearchitect_approval_rules/) and the tables which were created in https://gitlab.com/gitlab-org/gitlab/-/merge_requests/171114+ and https://gitlab.com/gitlab-org/gitlab/-/merge_requests/174517+.