fix: make module test runner configurable (#6803)

* fix: make module test runner configurable

* Create blue-pumas-promise.md

packages/medusa-test-utils/src/module-test-runner.ts

@@ -39,7 +39,7 @@ export function moduleIntegrationTestRunner({
 }) {
   process.env.LOG_LEVEL = "error"
 
-  moduleModels = Object.values(require(`${process.cwd()}/src/models`))
+  moduleModels ??= Object.values(require(`${process.cwd()}/src/models`))
   // migrationPath ??= process.cwd() + "/src/migrations/!(*.d).{js,ts,cjs}"
 
   const tempName = parseInt(process.env.JEST_WORKER_ID || "1")