n-api: bump version of n-api supported

Bump the version due to additions to the api.

PR-URL: https://github.com/nodejs/node/pull/19497


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>