tools: convert addon-verify to remark

This is the last use of the remark *module*. tools/remark-cli and
tools/remark-preset-lint-node remain.

PR-URL: https://github.com/nodejs/node/pull/21978


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>