test: rename node-report suite to report

This commit renames the "node-report" test suite to "report"
in order to begin differentiating core's diagnostic reporting
from the original node-report module on npm

PR-URL: https://github.com/nodejs/node/pull/26371


Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: James M Snell <jasnell@gmail.com>