feat(locking): Locking module (#9524)

**What**
- Locking Module to manage concurrency
- Default `in-memory` provider

packages/modules/locking/src/index.ts

@@ -0,0 +1,11 @@
+import { Module, Modules } from "@medusajs/framework/utils"
+import { LockingModuleService } from "@services"
+import loadProviders from "./loaders/providers"
+
+export default Module(Modules.LOCKING, {
+  service: LockingModuleService,
+  loaders: [loadProviders],
+})
+
+// Module options types
+export { LockingModuleOptions } from "./types"