feat(medusa): Improve performance of Products domain (#3417)

* feat(medusa): Improve product update performances

* fix tests and update

* update mock repo

* improve repo

* cleanup

* fix

* cleanup + bulk emit + unit test fix

* improvements

* improve

* fix unit tests

* fix export

* fix product update handler

* enhance mock repo

* fix import integration

* fix end point tests

* revert mock repo product variant

* fix unit

* cleanup

* cleanup

* address feedback

* fix quotes in tests

* address feedback

* Create new-tips-mate.md

* use types

.changeset/new-tips-mate.md

@@ -0,0 +1,7 @@
+---
+"medusa-test-utils": patch
+"@medusajs/medusa": patch
+"integration-tests-api": patch
+---
+
+chores(medusa): Refactoring product update flow to improve handling and performances