Replace interface{} with any (#25686)

Result of running `perl -p -i -e 's#interface\{\}#any#g' **/*` and `make fmt`.

Basically the same [as golang did](2580d0e08d).

routers/api/packages/chef/chef.go

@@ -24,7 +24,7 @@ import (
 	packages_service "code.gitea.io/gitea/services/packages"
 )
 
-func apiError(ctx *context.Context, status int, obj interface{}) {
+func apiError(ctx *context.Context, status int, obj any) {
 	type Error struct {
 		ErrorMessages []string `json:"error_messages"`
 	}