Add support for login with Facebook OAuth
What does this MR do and why?
Describe in detail what your merge request does and why.
Add support for OAuth login with Facebook.
Variable values were set with https://gitlab.com/gitlab-org/quality/engineering-productivity-infrastructure/-/merge_requests/392. Facebook username was updated in https://gitlab.com/gitlab-org/quality/engineering-productivity-infrastructure/-/merge_requests/411)
Required for: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/125514
Related issue: https://gitlab.com/gitlab-org/quality/testcases/-/issues/3979
Screenshots or screen recordings
These are strongly recommended to assist reviewers and reduce the time to merge your change.
How to set up and validate locally
Numbered steps to set up and validate the change are strongly suggested.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.