doc: add zcbenz to collaborators

Fixes: https://github.com/nodejs/node/issues/51479
PR-URL: https://github.com/nodejs/node/pull/51812
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

README.md

@@ -481,6 +481,8 @@ For information about the governance of the Node.js project, see
   **Yash Ladha** <<yash@yashladha.in>> (he/him)
 * [ZYSzys](https://github.com/ZYSzys) -
   **Yongsheng Zhang** <<zyszys98@gmail.com>> (he/him)
+* [zcbenz](https://github.com/zcbenz) -
+  **Cheng Zhao** <zcbenz@gmail.com> (he/him)
 
 <details>