[MISC] Fixing a null reference by removing parallel_utils from mypy EXCLUDE (#35630)

Signed-off-by: Taneem Ibrahim <taneem.ibrahim@gmail.com>

tools/pre_commit/mypy.py

@@ -34,7 +34,6 @@ SEPARATE_GROUPS = [
 
 # TODO(woosuk): Include the code from Megatron and HuggingFace.
 EXCLUDE = [
-    "vllm/model_executor/parallel_utils",
     "vllm/model_executor/models",
     "vllm/model_executor/layers/fla/ops",
     # Ignore triton kernels in ops.