[CI] Fix Pre-commit Issue Cannot determine type of "rank" and "world_size" (#26448)

Signed-off-by: yewentao256 <zhyanwentao@126.com>

Author: yewentao256

vllm/distributed/device_communicators/all2all.py

@@ -377,6 +377,11 @@ class FlashInferAllToAllManager(All2AllManagerBase):
     All2All communication based on flashinfer kernels.
     """
 
+    # This type lint could be removed after all of the work in
+    # https://github.com/vllm-project/vllm/issues/26533 done.
+    rank: int
+    world_size: int
+
     def __init__(self, cpu_group):
         assert has_flashinfer_all2all(), (
             "flashinfer all2all module not found. Please install/check flashinfer"