Dynamically fetch tool list for GKG gRPC webserver
<!--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>
- [Label this issue](https://contributors.gitlab.com/manage-issue?action=label&projectId=278964&issueIid=596121)
</details>
<!--IssueSummary end-->
The following discussion from gitlab-org/gitlab!230457 should be addressed:
- [ ] @michaelangeloio started a [discussion](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/230457#note_3233854256):
> creating follow up for this
issue