Update yubikey-manager version

dagheyman · dagheyman · commit 819d6b0a00b3 · 2017-05-08T14:55:34.000+02:00
diff --git a/vendor/yubikey-manager b/vendor/yubikey-manager
@@ -1 +1 @@
-Subproject commit 030474eb21a6e30e838d0e625d34a48d3270009b
+Subproject commit e168b3e42ebb2e9e8d66f5b4105d5f6f16753a3c
