src: update branch name in node_revert.h

PR-URL: https://github.com/nodejs/node/pull/52390
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

src/node_revert.h

@@ -11,7 +11,7 @@
  * a given LTS or Stable may be added to this list, and only with TSC
  * consensus.
  *
- * For *master* this list should always be empty!
+ * For *main* this list should always be empty!
  **/
 namespace node {