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).

services/packages/packages.go

@@ -44,7 +44,7 @@ type PackageCreationInfo struct {
 	PackageInfo
 	SemverCompatible  bool
 	Creator           *user_model.User
-	Metadata          interface{}
+	Metadata          any
 	PackageProperties map[string]string
 	VersionProperties map[string]string
 }