Chore/test runner improvements (#12439)

**What**
Make sure there is no open handles left and that the shutdown function are properly called. Refactor and improve the medusa test runner. Make sure all modules instances are released and cleaned up

**NOTE:**
On a separate PR we can continue the investigation for the memory growing over time while the tests execute

packages/medusa-test-utils/src/init-modules.ts

@@ -8,6 +8,7 @@ import {
   createPgConnection,
   promiseAll,
 } from "@medusajs/framework/utils"
+import { logger } from "@medusajs/framework/logger"
 
 export interface InitModulesOptions {
   injectedDependencies?: Record<string, unknown>
@@ -69,7 +70,7 @@ export async function initModules({
       ])
     } else {
       if (!preventConnectionDestroyWarning) {
-        console.info(
+        logger.info(
           `You are using a custom shared connection. The connection won't be destroyed automatically.`
         )
       }