fix for the qwen controlnet pipeline - wrong device can be used (#12309)

fix the device for textencoder

src/diffusers/pipelines/qwenimage/pipeline_qwenimage_controlnet.py

@@ -265,7 +265,7 @@ class QwenImageControlNetPipeline(DiffusionPipeline, QwenImageLoraLoaderMixin):
         txt = [template.format(e) for e in prompt]
         txt_tokens = self.tokenizer(
             txt, max_length=self.tokenizer_max_length + drop_idx, padding=True, truncation=True, return_tensors="pt"
-        ).to(self.device)
+        ).to(device)
         encoder_hidden_states = self.text_encoder(
             input_ids=txt_tokens.input_ids,
             attention_mask=txt_tokens.attention_mask,