Rename requirement.txt to requirements.txt (#352)

Author: daxiaraoming

files/models/ChatGLM2/requirement.txt renamed to files/models/ChatGLM2/requirements.txt

@@ -8,4 +8,4 @@ starlette==0.27.0
 tiktoken==0.4.0
 torch==2.0.1
 transformers==4.31.0
-uvicorn==0.23.2
+uvicorn==0.23.2