Bump github.com/spf13/viper from 1.16.0 to 1.18.2

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.16.0 to 1.18.2.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.16.0...v1.18.2)

---
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

@@ -8,7 +8,7 @@ require (
 	github.com/gorilla/handlers v1.5.2
 	github.com/gorilla/mux v1.8.1
 	github.com/rs/zerolog v1.32.0
-	github.com/spf13/viper v1.16.0
+	github.com/spf13/viper v1.18.2
 	github.com/stretchr/testify v1.9.0
 	github.com/tisnik/go-capture v1.0.1
 	github.com/verdverm/frisby v0.0.0-20170604211311-b16556248a9a