Feat(medusa-test-utils, utils, pricing, product, link-modules): upgrade mikro orm version to latest (#5985)

* update mikro-orm version

* add changeset

* update product tests

* add optional number serializer util

* upgrade cart mikro-orm versions

* clean up test

packages/utils/src/common/index.ts

@@ -21,6 +21,7 @@ export * from "./map-object-to"
 export * from "./medusa-container"
 export * from "./object-from-string-path"
 export * from "./object-to-string-path"
+export * from "./optional-numeric-serializer"
 export * from "./promise-all"
 export * from "./remote-query-object-from-string"
 export * from "./remote-query-object-to-string"