Change owner's email address in nihal-gupta.json

Updated the email address for the owner in the JSON file.

domains/nihal-gupta.json

@@ -1,8 +1,8 @@
-{
+ {
     "description": "Personal portfolio site for Nihal Gupta — backend / full-stack developer",
     "owner": {
       "username": "Nihal-Gupta",
-      "email": "Nihal-Gupta@users.noreply.github.com"
+      "email": "nihalgupta@duck.com"
     },
     "records": {
       "CNAME": "nihal--portfolio--nzjmwn7pzkzv.code.run"