Merge branch 'qa-shl-workaround-for-register-spec' into 'master'

Work around to get register_spec e2e test passing

See merge request gitlab-org/gitlab!79023

qa/qa/resource/user.rb

@@ -100,7 +100,8 @@ module QA
 
       def exists?
         api_get
-      rescue ResourceNotFoundError
+        # TODO: remove 'InternalServerError' from below line after https://gitlab.com/gitlab-org/gitlab/-/issues/349337 has been resolved
+      rescue ResourceNotFoundError, InternalServerError
         false
       end