deps: cherry-pick e7f4e9e from upstream libuv

Original commit message:
    tty, win: get SetWinEventHook pointer at startup

    SetWinEventHook is not available on some Windows versions.

    Fixes: https://github.com/nodejs/node/issues/16603


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/16724
Fixes: https://github.com/https://github.com/nodejs/node/issues/16603


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>