updated winio package to latest (osquery#63)

The latest release has a number of bugfixes since 0.4.5, including a potential issue with DialPipe we're seeing in bug reports.
https://github.com/Microsoft/go-winio/releases/tag/v0.4.9

Author: groob

Gopkg.lock

@@ -10,7 +10,7 @@
 
 [[constraint]]
   name = "github.com/Microsoft/go-winio"
-  version = "0.4.5"
+  version = "0.4.9"
 
 [[constraint]]
   name = "github.com/pkg/errors"