Update pytest and transformers with fixes for pytest>= 8.0.0 (#5164)

The underlying issue preventing us from using pytest 8.0.1+ is in
transformers. Here is a [PR that fixes the
issue](https://github.com/huggingface/transformers/pull/29154) that will
need to be merged and then a new release of transformers before we can
complete this PR.

No impact to nv-nightly, run
[here](https://github.com/microsoft/DeepSpeed/actions/runs/8575192380/job/23503659644)
Currently errors on nv-inference from [the
PR](https://github.com/microsoft/DeepSpeed/actions/runs/8575187611/job/23503647378),
but the same tests are broken in
[master](https://github.com/microsoft/DeepSpeed/actions/runs/8575185551/job/23503640238).

requirements/requirements-dev.txt

@@ -6,7 +6,7 @@ future
 importlib-metadata>=4
 mup
 pre-commit>=2.20.0
-pytest<=8.0.0
+pytest>=7.2.0
 pytest-forked
 pytest-randomly
 pytest-xdist
@@ -16,5 +16,5 @@ sphinx
 sphinx-rtd-theme
 tensorboard
 torchvision
-transformers>=4.32.1
+transformers>=4.39.0
 wandb