chore(deps): bump github.com/spf13/viper from 1.11.0 to 1.12.0

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.11.0 to 1.12.0.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.11.0...v1.12.0)

---
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

@@ -30,7 +30,7 @@ require (
 	github.com/soheilhy/cmux v0.1.5
 	github.com/speps/go-hashids/v2 v2.0.1
 	github.com/spf13/cobra v1.4.0
-	github.com/spf13/viper v1.11.0
+	github.com/spf13/viper v1.12.0
 	github.com/stretchr/testify v1.7.1
 	github.com/uber/jaeger-client-go v2.30.0+incompatible
 	github.com/uber/jaeger-lib v2.4.1+incompatible