dns: restore apex alias on nix.dev

Author: mweinelt

dns/nix.dev.js

@@ -20,8 +20,7 @@ D("nix.dev",
 
 	TXT("@", "google-site-verification=J55RGHyOPKpHAyIHVfBy1RdY_LuVIvLyuyR8deO62YE"),
 
-	A("@", "99.83.231.61"),
-	A("@", "75.2.60.5"),
+	ALIAS("@", "nix-dev.netlify.app."),
 	CNAME("www", "nix-dev.netlify.app.")
 );