Add typo checker in pre-commit (#6179)

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

sgl-kernel/tests/test_flash_attention.py

@@ -24,7 +24,7 @@ def is_fa3_supported(device=None) -> bool:
     #  Between sm80/sm87 and sm86/sm89 is the shared memory size. you can follow the link below for more information
     #  https://docs.nvidia.com/cuda/cuda-c-programming-guide/#shared-memory-8-x
     #  And for sgl-kernel right now, we can build fa3 on sm80/sm86/sm89/sm90a.
-    #  Thats mean if you use A100/A*0/L20/L40/L40s/4090 you can use fa3.
+    #  That means if you use A100/A*0/L20/L40/L40s/4090 you can use fa3.
     return (
         torch.cuda.get_device_capability(device)[0] == 9
         or torch.cuda.get_device_capability(device)[0] == 8

sgl-kernel/tests/test_per_token_group_quant_8bit.py

@@ -21,7 +21,7 @@ def _per_token_group_quant_fp8(
     y_s_ptr,
     # Stride of input
     y_stride,
-    # Collums of input
+    # Columns of input
     N,
     # Avoid to divide zero
     eps,