os: implement os.release() using uv_os_uname()

For non-Windows platforms, the happy path behavior should be
identical. On Windows, uv_os_uname() attempts to use
RtlGetVersion() before falling back to the deprecated
GetVersionExW() that Node was previously using.

PR-URL: https://github.com/nodejs/node/pull/25600


Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>