Update windows packaging: ruby and libcouchbase versions

Change-Id: I564bb0918591bc06b4c237c53f888a2e2c663e1a
Reviewed-on: http://review.couchbase.org/31683
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Tested-by: Sergey Avseyev <sergey.avseyev@gmail.com>