Fix speech stream validation formatting

Signed-off-by: syd520zy <529477025@qq.com>

Author: syd520zy

vllm_omni/entrypoints/openai/protocol/audio.py

@@ -303,9 +303,7 @@ def validate_streaming_constraints(self) -> "OpenAICreateSpeechRequest":
             if self.speed is None:
                 self.speed = 1.0
             elif self.speed != 1.0:
-                raise ValueError(
-                    "Speed adjustment is not supported when streaming. Set speed=1.0 or omit it."
-                )
+                raise ValueError("Speed adjustment is not supported when streaming. Set speed=1.0 or omit it.")
         return self