Recreate ##MS_SSISServerCleanupJobLogin## user as [##MS_SSISServerCleanupJobUser##
I think the solution will work. Don't forget to grant permissions:

USE [SSISDB]
GO
GRANT EXECUTE ON [internal].[cleanup_server_project_version] TO [##MS_SSISServerCleanupJobUser##]
GO
GRANT EXECUTE ON [internal].[cleanup_server_retention_window] TO [##MS_SSISServerCleanupJobUser##]
GO