Install `accelerete@main` in PyTorch Past CI jobs.
# What does this PR do?

Install `accelerete@main` in PyTorch Past CI jobs.

### Context

In ##22393, we added back `deepspeed` in Past CI docker image. Later in #22859, we decide to use `accelerate@main`, but I forgot to apply the same change in Past CI docker file, as I mistakenly thought Past CI doesn't use `accelerate`.

- However, `[deepspeed-testing]` (installed in Past CI docker) includes `accelerate`, and we want it to be `accelerate@main`.
- We can't include `acclerate` it in the docker image, as for the TF Past CI, it will break something
  - there was a remark: `accelerate requires torch, and this causes import issues for TF-only testing` 


_The documentation is not available anymore as the PR was closed or merged._