feat(medusa): migrate medusa unit tests / plugins integration tests to swc jest (#6820)

what:

- migrates medusa package to swc/jest
- migrates plugins integration tests to swc/jest
- parallelises a few of the heavy test packages
- fixes typeorm circular dependencies

**Unit Tests**

Before: 1 job => ~30 mins
After: 2 jobs => ~5 mins


<img width="260" alt="Screenshot 2024-03-25 at 15 11 49" src="https://github.com/medusajs/medusa/assets/5105988/e1df6985-5bd6-48d0-b87b-336d3c77d0cf">

**Plugins**

Before: 1 job => ~10 mins
After: 1 job => ~5 mins

<img width="254" alt="Screenshot 2024-03-25 at 15 26 03" src="https://github.com/medusajs/medusa/assets/5105988/c1cec0e2-a1c3-41d1-9372-46d114d804c6">



Co-authored-by: Adrien de Peretti <25098370+adrien2p@users.noreply.github.com>

integration-tests/api/__tests__/admin/__snapshots__/auth.js.snap

@@ -1,31 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`/admin/auth creates admin session correctly 1`] = `
-Object {
-  "api_token": "test_token",
-  "created_at": Any<String>,
-  "deleted_at": null,
-  "email": "admin@medusa.js",
-  "first_name": null,
-  "id": "admin_user",
-  "last_name": null,
-  "metadata": null,
-  "role": "admin",
-  "updated_at": Any<String>,
-}
-`;
-
-exports[`creates admin session correctly 1`] = `
-Object {
-  "api_token": "test_token",
-  "created_at": Any<String>,
-  "deleted_at": null,
-  "email": "admin@medusa.js",
-  "first_name": null,
-  "id": "admin_user",
-  "last_name": null,
-  "metadata": null,
-  "role": "admin",
-  "updated_at": Any<String>,
-}
-`;

integration-tests/api/jest.config.js

@@ -15,7 +15,7 @@ module.exports = {
     `__testfixtures__`,
     `.cache`,
   ],
-  transformIgnorePatterns: [`/dist`],
+  transformIgnorePatterns: ["/dist", "/node_modules/"],
   transform: { "^.+\\.[jt]s$": ["@swc/jest"] },
   setupFiles: ["../setup-env.js"],
   setupFilesAfterEnv: ["../setup.js"],

integration-tests/api/package.json

@@ -6,7 +6,7 @@
   "private": true,
   "scripts": {
     "test:integration": "jest --silent=false --maxWorkers=50% --bail --detectOpenHandles --forceExit --logHeapUsage",
-    "test:integration:chunk": "jest --silent --bail --maxWorkers=50% --forceExit --testPathPattern=$(echo $CHUNKS | jq -r \".[${CHUNK}] | .[]\")",
+    "test:integration:chunk": "jest --silent --bail --maxWorkers=50% --forceExit --detectOpenHandles --testPathPattern=$(echo $CHUNKS | jq -r \".[${CHUNK}] | .[]\")",
     "build": "babel src -d dist --extensions \".ts,.js\""
   },
   "dependencies": {