test: update windows module load error message

libuv 1.14.0 includes a fix for the "%1 is not a valid Win32
application" error message.

Refs: https://github.com/nodejs/node/pull/14866
PR-URL: https://github.com/nodejs/node/pull/14950


Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>