Revert "child_process: change windowsHide default to true"

This reverts commit 420d8afe.

PR-URL: https://github.com/nodejs/node/pull/24034


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Shelley Vohr <codebytere@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>