test: increase coverage for AbortController

Refs: https://coverage.nodejs.org/coverage-68e6673224365120/lib/internal/abort_controller.js.html#L126

PR-URL: https://github.com/nodejs/node/pull/38514


Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>