Fixed minor error in `test_lora_layers_peft.py` (#7394)

* Update test_lora_layers_peft.py

* Update utils.py

tests/lora/utils.py

@@ -73,7 +73,7 @@ class PeftLoraLoaderMixinTests:
     vae_kwargs = None
 
     def get_dummy_components(self, scheduler_cls=None):
-        scheduler_cls = self.scheduler_cls if scheduler_cls is None else LCMScheduler
+        scheduler_cls = self.scheduler_cls if scheduler_cls is None else scheduler_cls
         rank = 4
 
         torch.manual_seed(0)