chore(medusa-core-utils): Migrate to TS (#2670)

packages/medusa-core-utils/package.json

@@ -12,23 +12,16 @@
     "test": "jest",
     "build": "tsc --build",
     "prepare": "cross-env NODE_ENV=production yarn run build",
-    "watch": "babel -w src --out-dir dist/ --ignore **/__tests__"
+    "watch": "tsc --watch"
   },
   "author": "Sebastian Rindom",
   "license": "MIT",
   "devDependencies": {
-    "@babel/cli": "^7.13.0",
-    "@babel/core": "^7.13.8",
-    "@babel/plugin-proposal-class-properties": "^7.13.0",
-    "@babel/plugin-transform-classes": "^7.9.5",
-    "@babel/plugin-transform-runtime": "^7.7.6",
-    "@babel/preset-env": "^7.13.9",
-    "@babel/preset-typescript": "^7.16.0",
-    "@babel/runtime": "^7.13.9",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.13.1",
     "cross-env": "^5.2.1",
     "jest": "^25.5.2",
+    "ts-jest": "^25.5.1",
     "typescript": "^4.4.4"
   },
   "dependencies": {