Bump github.com/spf13/cobra from 1.0.0 to 1.1.3

Bumps [github.com/spf13/cobra](https://github.com/spf13/cobra) from 1.0.0 to 1.1.3.
- [Release notes](https://github.com/spf13/cobra/releases)
- [Changelog](https://github.com/spf13/cobra/blob/master/CHANGELOG.md)
- [Commits](spf13/cobra@v1.0.0...v1.1.3)

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

go.mod

@@ -14,6 +14,6 @@ require (
 	github.com/onsi/gomega v1.10.5
 	github.com/pelletier/go-toml v1.8.1
 	github.com/sclevine/spec v1.4.0
-	github.com/spf13/cobra v1.0.0
+	github.com/spf13/cobra v1.1.3
 	github.com/ulikunitz/xz v0.5.10
 )