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/repositories/jest.config.js

@@ -12,7 +12,7 @@ module.exports = {
     `__testfixtures__`,
     `.cache`,
   ],
-  transformIgnorePatterns: [`/dist`],
+  transformIgnorePatterns: ["/dist", "/node_modules/"],
   transform: { "^.+\\.[jt]s$": `../../jest-transformer.js` },
   setupFiles: ["../setup-env.js"],
   setupFilesAfterEnv: ["../setup.js"],