build: indicate that configure has done something

If run without `--verbose` configure exits silently with no indication
that it has done anything. Print a message on completion to indicate
that the script has worked.

Refs: https://github.com/nodejs/node/issues/23111

PR-URL: https://github.com/nodejs/node/pull/26436
Refs: https://github.com/nodejs/node/issues/23111


Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>