fix: lower engines (#1006)

Vercel uses aws lambda versions in it's build process. Currently the latest v14 version used by aws is v14.19.0. By raising to `>=14.19.1` you prevent vercel builds from succeeding (until that cap is bumped). 

See here for aws lambda version: https://docs.aws.amazon.com/elasticbeanstalk/latest/platforms/platform-history-nodejs.html

packages/vitest/package.json

@@ -132,6 +132,6 @@
     "ws": "^8.5.0"
   },
   "engines": {
-    "node": ">=v14.19.1"
+    "node": ">=v14.19.0"
   }
 }