doc: add Leko to collaborators

PR-URL: #18117
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>

Author: Leko

README.md

@@ -405,6 +405,8 @@ For more information about the governance of the Node.js project, see
 **Kunal Pathak** <kunal.pathak@microsoft.com>
 * [lance](https://github.com/lance) -
 **Lance Ball** <lball@redhat.com>
+* [Leko](https://github.com/Leko) -
+**Shingo Inoue** <leko.noor@gmail.com> (he/him)
 * [lpinca](https://github.com/lpinca) -
 **Luigi Pinca** <luigipinca@gmail.com> (he/him)
 * [lucamaraschi](https://github.com/lucamaraschi) -