[CI] Add supports_multimodal_inputs to test_executor_replace's mock config (#59476)

Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

tests/renderers/test_executor_replace.py

@@ -34,6 +34,7 @@ class MockModelConfig:
     skip_tokenizer_init: bool = False
     is_encoder_decoder: bool = False
     is_multimodal_model: bool = False
+    supports_multimodal_inputs: bool = False
     renderer_num_workers: int = 1
     hidden_size: int = 768
     dtype: torch.dtype = torch.float32