Fix PIL dep for tests (#34028)

Fix PIL dep for tess

tests/trainer/test_trainer.py

@@ -92,6 +92,7 @@ from transformers.testing_utils import (
     require_torch_tf32,
     require_torch_up_to_2_accelerators,
     require_torchdynamo,
+    require_vision,
     require_wandb,
     slow,
     torch_device,
@@ -3812,6 +3813,7 @@ class TrainerIntegrationTest(TestCasePlus, TrainerIntegrationCommon):
             reloaded_tokenizer(test_sentence, padding="max_length").input_ids,
         )
 
+    @require_vision
     def test_trainer_saves_image_processor(self):
         MODEL_ID = "openai/clip-vit-base-patch32"
         image_processor = AutoImageProcessor.from_pretrained(MODEL_ID)
@@ -3845,6 +3847,7 @@ class TrainerIntegrationTest(TestCasePlus, TrainerIntegrationCommon):
 
         self.assertDictEqual(feature_extractor.to_dict(), reloaded_feature_extractor.to_dict())
 
+    @require_vision
     def test_trainer_saves_processor(self):
         MODEL_ID = "openai/clip-vit-base-patch32"
         image_processor = AutoImageProcessor.from_pretrained(MODEL_ID)