Enhance WHOIS fallback error handling and add IANA WHOIS parsing utilities

Updated the error messages in the lookupDomain function to provide clearer guidance when RDAP is unavailable or when no WHOIS server is discovered for a TLD. Introduced new utility functions to parse IANA WHOIS responses, improving the discovery process for WHOIS servers and registration information URLs.

renovate.json

@@ -1,6 +1,4 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
-  ]
+  "extends": ["config:recommended"]
 }