Update requirements.txt

reqt.txt file update with versiions

requirements.txt

@@ -1,22 +1,22 @@
-langchain
-chromadb
-llama-cpp-python
-pdfminer.six
+langchain==0.0.267
+chromadb==0.4.6
+llama-cpp-python==0.1.78
+pdfminer.six==20221105
 InstructorEmbedding
 sentence-transformers
 faiss-cpu
 huggingface_hub
 transformers
-protobuf
-protobuf
-protobuf
-auto-gptq
+protobuf==3.20.0; sys_platform != 'darwin'
+protobuf==3.20.0; sys_platform == 'darwin' and platform_machine != 'arm64'
+protobuf==3.20.3; sys_platform == 'darwin' and platform_machine == 'arm64'
+auto-gptq==0.2.2
 docx2txt
 unstructured
-urllib3
+urllib3==1.26.6
 accelerate
-bitsandbytes 
-bitsandbytes-windows
+bitsandbytes ; sys_platform != 'win32'
+bitsandbytes-windows ; sys_platform == 'win32'
 click
 flask
 requests