Feat(Q): Add AmazonQ db and config (!174949) · Merge requests · GitLab.org / GitLab · GitLab

Feature branch: DRAFT: Amazon q spike (!174614 - closed)
Side note: This was originally developed in a private fork by GitLab team members in collaboration with Amazon's team.

What does this MR do and why?

This MR sets up the feature flag and database migrations for GitLab Duo with Amazon Q. Please see the Feature branch MR for more context.