fix: validation method typo

Author: ppfeister

sherlock_project/resources/data.json

@@ -2805,7 +2805,7 @@
   },
   "v0.dev": {
     "errorType": "message",
-    "errorMessage": "404 - Page Not Found",
+    "errorMsg": "404 - Page Not Found",
     "url": "https://v0.dev/{}",
     "urlMain": "https://v0.dev",
     "username_claimed": "t3dotgg"