build(deps): bump github.com/spf13/viper from 1.6.1 to 1.7.0 (#1146)

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.6.1 to 1.7.0.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.6.1...v1.7.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

go.mod

@@ -40,7 +40,7 @@ require (
 	github.com/sourcegraph/go-diff v0.5.2
 	github.com/spf13/cobra v1.0.0
 	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.6.1
+	github.com/spf13/viper v1.7.0
 	github.com/stretchr/testify v1.5.1
 	github.com/tdakkota/asciicheck v0.0.0-20200416190851-d7f85be797a2
 	github.com/tetafro/godot v0.4.2