Add user profile visibility updated audit event

What does this MR do and why?

In #474386 (comment 2438725423) we made a decision to:

• Start emitting a second event with the correct spelling

This creates a new audit event type user_profile_visiblity_updated

References

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. In an instance with Ultimate license
2. Go to Admin -> Monitoring -> Audit events -> Streams
3. Create an HTTP streaming destination
   1. https://docs.gitlab.com/administration/compliance/audit_event_streaming/#add-a-new-http-destination
   2. You can use https://webhook.site/ to get events
4. Update user profile visibility
5. Check audit events for new event and old event are created

MR acceptance checklist

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Related to #474386