**Is your feature request related to a problem? Please describe. **
One user requested the ability to log in using their GitLab account. Currently, we don't support GitLab as an authentication provider, which limits flexibility for users who rely on it.

Describe the solution you would like
Integrate GitLab authentication via OAuth2, allowing users to sign in with their GitLab credentials.

Describe alternatives you have considered
Other providers like GitHub or Google are available, but they don't meet the needs of users who are primarily using GitLab.

Additional context