cmd/internal/osinfo,runtime,syscall: use RtlGetVersion instead of RtlGetNtVersionNumbers

cmd/internal/osinfo,runtime,syscall: use RtlGetVersion instead of RtlGetNtVersionNumbers

The RtlGetNtVersionNumbers function is not documented by Microsoft.
Use RtlGetVersion instead, which is documented and available on all
supported versions of Windows.

Cq-Include-Trybots: luci.golang.try:gotip-windows-amd64-longtest,gotip-windows-arm64
Change-Id: Ibaf0e2c28e673951476c5d863a829fd166705aea
Reviewed-on: https://go-review.googlesource.com/c/go/+/571015
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>