Bump github.com/spf13/viper from 1.7.1 to 1.12.0 (#104)

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.7.1 to 1.12.0.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.7.1...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>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/prometheus/client_golang v1.12.1 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.7.1
+	github.com/spf13/viper v1.12.0
 	github.com/xmidt-org/candlelight v0.0.5
 	github.com/xmidt-org/webpa-common v1.11.9
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.19.0