fix: Vertical alignment of Duo loader

See merge request gitlab-org/gitlab-ui!4063



Merged-by: Jose Ivan Vargas <jvargas@gitlab.com>
Approved-by: Sascha Eggenberger <seggenberger@gitlab.com>
Approved-by: Scott Hampton <shampton@gitlab.com>
Approved-by: Jose Ivan Vargas <jvargas@gitlab.com>
Co-authored-by: GitLab Bot <gitlab-bot@gitlab.com>
Co-authored-by: Marcel van Remmerden <mvanremmerden@gitlab.com>

## [78.8.1](gitlab-org/gitlab-ui@v78.8.0...v78.8.1) (2024-04-04)

### Bug Fixes

* Vertical alignment of Duo loader ([b8cc06b7](gitlab-org/gitlab-ui@b8cc06b7))