meta: add module label for the lib/internal/modules folder

PR-URL: #52858
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

.github/label-pr-config.yml

@@ -99,6 +99,7 @@ subSystemLabels:
   /^lib\/test.js$/: test_runner
   /^lib\/internal\/url\.js$/: whatwg-url
   /^lib\/internal\/modules\/esm/: esm
+  /^lib\/internal\/modules/: module
   /^lib\/internal\/webstreams/: web streams
   /^lib\/internal\/test_runner/: test_runner