fix: stepper | Last tab line should not be visible

Author: mehmetcetin01140

packages/primeng/src/stepper/stepper.ts

@@ -335,7 +335,8 @@ export class Step extends BaseComponent<StepPassThrough> {
         '[attr.role]': '"tabpanel"',
         '[attr.aria-controls]': 'ariaControls()',
         '[attr.id]': 'id()',
-        '[attr.data-p-active]': 'active()'
+        '[attr.data-p-active]': 'active()',
+        '[attr.data-pc-name]': '"steppanel"'
     },
     animations: [
         trigger('content', [