There's a closed pull request on the void-packages repository

common/xbps-src/shutils/update_check.sh: fix url for gitlab
https://github.com/void-linux/void-packages/pull/43944

Description:
#### Testing the changes
- I tested the changes in this PR: **YES**

All update checks which only rely on Gitlab are currently broken. The `code.videolan.org` counterpart also works with this change.