Merge branch '49057-fix-repository-typo' into 'master'

Fix a typo in Gitlab::Git::Repository

See merge request gitlab-org/gitlab-ce!20520

lib/gitlab/git/repository.rb

@@ -627,7 +627,7 @@ module Gitlab
       def update_branch(branch_name, user:, newrev:, oldrev:)
         gitaly_migrate(:operation_user_update_branch) do |is_enabled|
           if is_enabled
-            gitaly_operations_client.user_update_branch(branch_name, user, newrev, oldrev)
+            gitaly_operation_client.user_update_branch(branch_name, user, newrev, oldrev)
           else
             OperationService.new(user, self).update_branch(branch_name, newrev, oldrev)
           end