Chore: use any rather than interface{} (#74066)

pkg/web/macaron.go

@@ -45,7 +45,7 @@ func Version() string {
 // Handler can be any callable function.
 // Macaron attempts to inject services into the handler's argument list,
 // and panics if an argument could not be fulfilled via dependency injection.
-type Handler interface{}
+type Handler any
 
 //go:linkname hack_wrap github.com/grafana/grafana/pkg/api/response.wrap_handler
 func hack_wrap(Handler) http.HandlerFunc