Update DartDioClientCodegenTest.java for doc clarity

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Lutra-Fs

modules/openapi-generator/src/test/java/org/openapitools/codegen/dart/dio/DartDioClientCodegenTest.java

@@ -146,7 +146,7 @@ public void verifyWebhookImports() throws IOException {
 
         // Bug symptom #22586: Map-style import with HTML entity encoding
         // Before fix: import '{import=model.Pet, classname=Pet}';
-        // After fix: import 'package:my_package/lib/src/gen/model/pet.dart';
+        // After fix: import 'package:my-package/src/model/pet.dart';
         Assert.assertFalse(apiContent.contains("import '{"),
             "Webhook should not contain Map-style import (bug #22586 symptom)");
         Assert.assertFalse(apiContent.contains("="),