Update tokenizers

Author: hlky

.github/workflows/pr_test_peft_backend.yml

@@ -96,10 +96,11 @@ jobs:
         if [ "${{ matrix.lib-versions }}" == "main" ]; then
             python -m pip install -U peft@git+https://github.com/huggingface/peft.git --no-deps
             python -m uv pip install -U transformers@git+https://github.com/huggingface/transformers.git --no-deps
+            python -m uv pip install -U tokenizers@git+https://github.com/huggingface/tokenizers.git --no-deps
             pip uninstall accelerate -y && python -m uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git --no-deps
         else
             python -m uv pip install -U peft --no-deps
-            python -m uv pip install -U transformers accelerate --no-deps
+            python -m uv pip install -U transformers accelerate tokenizers --no-deps
         fi
 
     - name: Environment