Update CNAME to dileepapeiris.github.io

Replace the CNAME record in domains/dileepapeiris.json to point to dileepapeiris.github.io instead of portfolio-v2-1nb.pages.dev so the domain resolves to the GitHub Pages site.

domains/dileepapeiris.json

@@ -4,6 +4,6 @@
     "email": "dileepapeiris5@gmail.com"
   },
   "records": {
-    "CNAME": "portfolio-v2-1nb.pages.dev"
+    "CNAME": "dileepapeiris.github.io"
   }
 }