Bump github.com/spf13/viper from 1.13.0 to 1.14.0

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.13.0 to 1.14.0.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.13.0...v1.14.0)

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

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

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/spf13/cobra v1.6.1
-	github.com/spf13/viper v1.13.0
+	github.com/spf13/viper v1.14.0
 	github.com/stretchr/testify v1.8.1
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 )