Gitlab Integration: How to add all repositories

### Environment

self-hosted (https://develop.sentry.dev/self-hosted/)

### What are you trying to accomplish?

I'm using the sentry gitlab integration and I'm trying to add all repositories at once, rather than one by one (which is tedious with the 50+ repos I have at hand).

### How are you getting stuck?

I can't find a way to add them all automatically.

I saw this was somewhat discussed in https://github.com/getsentry/sentry/issues/55231, but nothing came out of it.

I could hack my way around it, but I was wondering if there is a proper way of doing this?

### Where in the product are you?

Settings - Integrations

### Link

_No response_

### DSN

_No response_

### Version

24.12.0

Start in Settings - Integrations and review the related discussion in issue 55231 to understand the existing GitLab integration behavior. The issue names no files, tests, or acceptance criteria, so the work would first need a defined bulk-add workflow and a clear way to verify it.

Written by the indexing model from the issue text.