meta: update collaborator email in README

Per instructions from Fedor, I'm updating their email address in the
README.

PR-URL: #39510
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: Trott

README.md

@@ -219,7 +219,7 @@ For information about the governance of the Node.js project, see
 * [gibfahn](https://github.com/gibfahn) -
 **Gibson Fahnestock** <gibfahn@gmail.com> (he/him)
 * [indutny](https://github.com/indutny) -
-**Fedor Indutny** <fedor.indutny@gmail.com>
+**Fedor Indutny** <fedor@indutny.com>
 * [isaacs](https://github.com/isaacs) -
 **Isaac Z. Schlueter** <i@izs.me>
 * [joshgav](https://github.com/joshgav) -
@@ -342,7 +342,7 @@ For information about the governance of the Node.js project, see
 * [iansu](https://github.com/iansu) -
 **Ian Sutherland** <ian@iansutherland.ca>
 * [indutny](https://github.com/indutny) -
-**Fedor Indutny** <fedor.indutny@gmail.com>
+**Fedor Indutny** <fedor@indutny.com>
 * [JacksonTian](https://github.com/JacksonTian) -
 **Jackson Tian** <shyvo1987@gmail.com>
 * [jasnell](https://github.com/jasnell) -