Don't run AriaForConditionalGenerationModelTest on CircleCI (#38615)

git rid of this model

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

tests/models/aria/test_modeling_aria.py

@@ -171,6 +171,7 @@ class AriaVisionText2TextModelTester:
         return config, inputs_dict
 
 
+@slow
 @require_torch
 class AriaForConditionalGenerationModelTest(ModelTesterMixin, GenerationTesterMixin, unittest.TestCase):
     """