fix isort ci

Author: wenxie-amd

examples/scripts/preprocess_data.py

@@ -27,8 +27,12 @@
 from primus.backends.megatron.training.tokenizer.tokenizer import (
     _add_extra_tokenizer_args as _add_tokenizer_args,
 )
+
+# isort: off
 from primus.backends.megatron.training.tokenizer.tokenizer import build_tokenizer
 
+# isort: on
+
 
 # https://stackoverflow.com/questions/33139531/preserve-empty-lines-with-nltks-punkt-tokenizer
 class CustomLanguageVars(PunktLanguageVars):