test: use useful message argument in test function

The message argument of two test functions in
test-inspector-async-call-stack is useful but unused. Use it!

PR-URL: https://github.com/nodejs/node/pull/30618


Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>