tools: update dmn in update-estlint.sh

Version 2.1.0 of dmn will get rid of .map and .ts files.

PR-URL: https://github.com/nodejs/node/pull/25877


Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>