chore(): faster serialization (#13325)

* chore(): Improve serialization perf

* better optimization with monomorphic approach and consistent object shape and array operations

* cleanup

* cleanup

* fix

* Create short-birds-help.md

* ref work

* ref work

* address feedback

* save intermediary changes

* save intermediary changes

.changeset/short-birds-help.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/utils": patch
+---
+
+Chore/faster serialization