style(speechlm2): sort MTP plugin test imports

Signed-off-by: Piotr Żelasko <pzelasko@nvidia.com>

Author: pzelasko

tests/collections/speechlm2/test_vllm_plugin.py

@@ -943,9 +943,7 @@ def test_processing_info_has_no_audio_duration_limit(self):
         assert not hasattr(info, "get_max_audio_tokens")
 
     def test_pe_processing_ignores_exported_generic_estimator_chunking(self, monkeypatch):
-        from nemo.collections.speechlm2.vllm.salm.audio import (
-            NeMoSpeechLMProcessingInfo,
-        )
+        from nemo.collections.speechlm2.vllm.salm.audio import NeMoSpeechLMProcessingInfo
 
         exported_estimator = {
             "chunk_size_seconds": 15.0,