Actually add vitest as a dep

Author: markerikson

packages/rtk-codemods/package.json

@@ -31,7 +31,8 @@
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-prettier": "^3.4.0",
-    "prettier": "^2.2.1"
+    "prettier": "^2.2.1",
+    "vitest": "^0.30.1"
   },
   "engines": {
     "node": ">= 16"

yarn.lock

@@ -6934,6 +6934,7 @@ __metadata:
     eslint-plugin-prettier: ^3.4.0
     prettier: ^2.2.1
     typescript: ^4.8.0
+    vitest: ^0.30.1
   bin:
     rtk-codemods: ./bin/cli.js
   languageName: unknown