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>

packages/medusa/jest.config.js

@@ -9,17 +9,11 @@ module.exports = {
   //      useCoverage ? `jest-junit` : []
   //    )
   //  : [`default`].concat(useCoverage ? `jest-junit` : []),
-  globals: {
-    "ts-jest": {
-      tsConfig: "tsconfig.spec.json",
-      isolatedModules: false,
-    },
-  },
   transform: {
-    "^.+\\.[jt]s?$": "ts-jest",
+    "^.+\\.[jt]s?$": "@swc/jest",
   },
-  modulePathIgnorePatterns: ["__fixtures__"],
+  modulePathIgnorePatterns: ["__fixtures__", "node_modules", "dist"],
   testEnvironment: `node`,
-  moduleFileExtensions: [`js`, `jsx`, `ts`, `tsx`, `json`],
+  moduleFileExtensions: [`js`, `ts`],
   setupFilesAfterEnv: ["<rootDir>/setupTests.js"],
 }