tools: add url and whatwg-url labels automatically

PR-URL: nodejs/node#47545
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>

Author: anonrig

.github/label-pr-config.yml

@@ -158,6 +158,7 @@ exlusiveLabels:
   /^benchmark\/_http/: benchmark, http
   /^benchmark\/(?:misc|fixtures)\//: benchmark
   /^benchmark\/streams\//: benchmark, stream
+  /^benchmark\/url\//: benchmark, url, whatwg-url
   /^benchmark\/([^/]+)\//: benchmark, $1
 
   /^benchmark\//: benchmark, performance