[Release 0.6] update torchao pin (#9947)

This PR is the first step to addressing
https://github.com/pytorch/executorch/issues/9940 and making torchao
installable on ET/release/0.6.

1. This PR bumps torchao pin to torchao/release/0.10.0 branch.

2. We will follow-up with a PR in release/0.6 to bump the pin and add
torchao==0.10.0 to the pyproject.toml file.