chore: Remove typeORM (#9005)

* chore: rename js files to txt

* chore: rename ts files to txt

* chore: delete environment helpers

* chore: convert global setup & teardown to txt

* chore: rename helper js/ts files to txt

* chore: rename seeder js/ts files to txt

* chore: remove typeorm

* chore: reintroduce used helpers

integration-tests/helpers/admin-seeder.js.txt

@@ -0,0 +1,16 @@
+const Scrypt = require("scrypt-kdf")
+
+module.exports = async (dataSource, data = {}) => {
+  const manager = dataSource.manager
+
+  const buf = await Scrypt.kdf("secret_password", { logN: 15, r: 8, p: 1 })
+  const password_hash = buf.toString("base64")
+
+  const user = await manager.insert("user", {
+    id: "admin_user",
+    email: "admin@medusa.js",
+    ...data,
+  })
+
+  return { user, password_hash }
+}