Bump github.com/go-viper/mapstructure/v2 in /cmd/opampsupervisor

Bumps [github.com/go-viper/mapstructure/v2](https://github.com/go-viper/mapstructure) from 2.2.1 to 2.4.0.
- [Release notes](https://github.com/go-viper/mapstructure/releases)
- [Changelog](https://github.com/go-viper/mapstructure/blob/main/CHANGELOG.md)
- [Commits](go-viper/mapstructure@v2.2.1...v2.4.0)

---
updated-dependencies:
- dependency-name: github.com/go-viper/mapstructure/v2
  dependency-version: 2.4.0
  dependency-type: indirect
...

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

Author: dependabot[bot]

cmd/opampsupervisor/go.mod

@@ -28,7 +28,7 @@ require (
 require (
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/fsnotify/fsnotify v1.8.0 // indirect
-	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/knadh/koanf/providers/confmap v0.1.0 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect