Pin ao to 0.1 (#844)

ao just made a release today where our default binaries on pypi are cuda binaries https://github.com/pytorch/ao/releases/tag/v0.2.0 which is breaking torchat ci

So short term fix is this PR which is to downgrade the ao version 
Longer term fix we will upload cpu only binaries on pytorch.org

requirements.txt

@@ -1,7 +1,7 @@
 # Requires python >=3.10
 
 # PyTorch ecosystem
-torchao
+torchao==0.1
 
 # Hugging Face download
 huggingface_hub