Update requirements.txt

requirements.txt

@@ -1,6 +1,6 @@
 fastapi>=0.68.0
 onnxruntime>=1.10.0
-transformers>=4.26.0
+transformers>=4.41.0  # Version with good tokenizer-only support
+tokenizers>=0.19.1    # Rust-based tokenizer implementation
 numpy>=1.21.0
-uvicorn>=0.15.0
-protobuf>=3.20.0  # Required for some tokenizers
+uvicorn>=0.15.0