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/authentication/package.json

@@ -39,7 +39,7 @@
     "orm:cache:clear": " MIKRO_ORM_CLI=./mikro-orm.config.dev.ts mikro-orm cache:clear"
   },
   "devDependencies": {
-    "@mikro-orm/cli": "5.7.12",
+    "@mikro-orm/cli": "5.9.7",
     "cross-env": "^5.2.1",
     "jest": "^29.6.3",
     "medusa-test-utils": "^1.1.40",
@@ -53,9 +53,9 @@
     "@medusajs/modules-sdk": "^1.12.5",
     "@medusajs/types": "^1.11.9",
     "@medusajs/utils": "^1.11.2",
-    "@mikro-orm/core": "5.7.12",
-    "@mikro-orm/migrations": "5.7.12",
-    "@mikro-orm/postgresql": "5.7.12",
+    "@mikro-orm/core": "5.9.7",
+    "@mikro-orm/migrations": "5.9.7",
+    "@mikro-orm/postgresql": "5.9.7",
     "awilix": "^8.0.0",
     "dotenv": "^16.1.4",
     "knex": "2.4.2"