Update requirements.txt

requirements.txt

@@ -1,4 +1,5 @@
-fastapi==0.95.2
-requests==2.31.0
-uvicorn==0.22.0
-pydantic==1.10.7
+fastapi>=0.95.0
+uvicorn>=0.21.0
+python-dotenv>=0.21.0
+huggingface-hub>=0.14.0
+pydantic>=1.10.0