Add typo checker in pre-commit (#6179)

Co-authored-by: Brayden Zhong <b8zhong@uwaterloo.ca>

python/sglang/srt/sampling/sampling_batch_info.py

@@ -294,7 +294,7 @@ class SamplingBatchInfo:
             # Set the flag to True if any of the two has custom logit processor
             self.has_custom_logit_processor = True
 
-        # Note: becasue the __len()__ operator is defined on the temperatures tensor,
+        # Note: because the __len()__ operator is defined on the temperatures tensor,
         # please make sure any merge operation with len(self) or len(other) is done before
         # the merge operation of the temperatures tensor below.
         for item in [