build(deps): bump github.com/spf13/cobra from 1.3.0 to 1.4.0

Bumps [github.com/spf13/cobra](https://github.com/spf13/cobra) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/spf13/cobra/releases)
- [Changelog](https://github.com/spf13/cobra/blob/master/CHANGELOG.md)
- [Commits](spf13/cobra@v1.3.0...v1.4.0)

---
updated-dependencies:
- dependency-name: github.com/spf13/cobra
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -18,6 +18,7 @@ require (
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/kevinburke/ssh_config v1.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
 	github.com/mattn/go-isatty v0.0.14
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/mitchellh/go-homedir v1.1.0
@@ -29,7 +30,7 @@ require (
 	github.com/sabhiram/go-gitignore v0.0.0-20201211210132-54b8a0bf510f
 	github.com/sergi/go-diff v1.2.0 // indirect
 	github.com/sirupsen/logrus v1.8.1
-	github.com/spf13/cobra v1.3.0
+	github.com/spf13/cobra v1.4.0
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.7.0
 	github.com/xanzy/ssh-agent v0.3.1 // indirect