Replace interface{} with any (#25686) (#25687)

Same perl replacement as https://github.com/go-gitea/gitea/pull/25686
but for 1.20 to ease future backporting.

services/packages/packages.go

@@ -42,7 +42,7 @@ type PackageCreationInfo struct {
 	PackageInfo
 	SemverCompatible  bool
 	Creator           *user_model.User
-	Metadata          interface{}
+	Metadata          any
 	PackageProperties map[string]string
 	VersionProperties map[string]string
 }