Bump github.com/spf13/cobra from 0.0.5 to 0.0.6 (#67)

Bumps [github.com/spf13/cobra](https://github.com/spf13/cobra) from 0.0.5 to 0.0.6.
- [Release notes](https://github.com/spf13/cobra/releases)
- [Commits](spf13/cobra@0.0.5...v0.0.6)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

@@ -3,7 +3,7 @@ module github.com/fairwindsops/rbac-lookup
 go 1.13
 
 require (
-	github.com/spf13/cobra v0.0.5
+	github.com/spf13/cobra v0.0.6
 	github.com/stretchr/testify v1.5.1
 	golang.org/x/net v0.0.0-20191004110552-13f9640d40b9
 	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45