cmd/atlas/internal/cmdapi: split migrate apply into oss (#3427)

Author: masseelch

cmd/atlas/internal/cmdapi/migrate_oss.go

@@ -2,6 +2,8 @@
 // This source code is licensed under the Apache 2.0 license found
 // in the LICENSE file in the root directory of this source tree.
 
+//go:build !ent
+
 package cmdapi
 
 import (