Update packages.txt

Removing versions from packages.txt for smoother downfolding.

packages.txt

@@ -1,22 +1,22 @@
 
-langchain==0.0.267
-chromadb==0.4.6
-llama-cpp-python==0.1.78
-pdfminer.six==20221105
+langchain
+chromadb
+llama-cpp-python
+pdfminer.six
 InstructorEmbedding
 sentence-transformers
 faiss-cpu
 huggingface_hub
 transformers
-protobuf==3.20.0
-protobuf==3.20.0
-protobuf==3.20.3
-auto-gptq==0.2.2
+protobuf
+protobuf
+protobuf
+auto-gptq
 docx2txt
 unstructured
 
 
-urllib3==1.26.6
+urllib3
 accelerate
 bitsandbytes 
 bitsandbytes-windows