Improve Test [Exporter] JSON Exporter

- [+] fix(exporter_test.go): change type of messages from map[string]interface{} to map[string]any

export/expoter_test.go

@@ -15,7 +15,7 @@ import (
 
 func TestJSONExporter(t *testing.T) {
 	// Create a sample message
-	messages := []map[string]interface{}{
+	messages := []map[string]any{
 		{
 			"id":      "1",
 			"from":    []string{"contact@example.org"},