SCHEDULED DOWNTIME: After the upgrade to 18.0.0, GitLab's virtual host needs to be rebooted to increase system resources. The reboot will occur on Tuesday, 2025-09-09, between 8:00 and 9:00 PM.
### What problem does this PR solve?
Fix broken discord link
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Documentation Update
