[CI] Python 3.12 compatibility

[kurtamohler]

Description

Adds support for Python 3.12

Motivation and Context

fixes #766

Types of changes

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• New feature (non-breaking change which adds core functionality)

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• I have read the CONTRIBUTION guide (required)
• My change requires a change to the documentation.
• I have updated the tests accordingly (required for a bug fix or a new feature).
• I have updated the documentation accordingly.

[kurtamohler]

Unfortunately, pre-commit doesn't seem to work correctly for me with Python 3.12:

$ pre-commit run --all-files
...
flake8...................................................................Failed
- hook id: flake8
- exit code: 1

Traceback (most recent call last):
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/bin/flake8", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/main/cli.py", line 22, in main
    app.run(argv)
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/main/application.py", line 375, in run
    self._run(argv)
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/main/application.py", line 363, in _run
    self.initialize(argv)
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/main/application.py", line 343, in initialize
    self.find_plugins(config_finder)
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/main/application.py", line 157, in find_plugins
    self.check_plugins = plugin_manager.Checkers(local_plugins.extension)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/plugins/manager.py", line 363, in __init__
    self.manager = PluginManager(
                   ^^^^^^^^^^^^^^
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/plugins/manager.py", line 243, in __init__
    self._load_entrypoint_plugins()
  File "/home/endoplasm/.cache/pre-commit/reporpfvou3s/py_env-python3.12/lib/python3.12/site-packages/flake8/plugins/manager.py", line 261, in _load_entrypoint_plugins
    eps = importlib_metadata.entry_points().get(self.namespace, ())
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'EntryPoints' object has no attribute 'get'

But if I try running it in an environment that has Python 3.11, it passes.

To reproduce the failure:

conda create -n tmp
conda activate tmp
conda install python==3.12
pip install pre-commit
pre-commit run --all-files

[kurtamohler]

I was able to fix that error by updating the rev field for flake8 in .pre-commit-config.yaml, so I'll add that to this PR

[kurtamohler]

I added this to fix this failure: https://github.com/pytorch/tensordict/actions/runs/9555748210/job/26354755267?pr=818

In Python 3.12, setuptools is required to be able to import distutils

Not sure if this is really the best place to add this dependency

[vmoens]

I think it's ok, long term we should use smth like what torchtune has (ie no setup.py at all)
https://github.com/pytorch/torchtune/blob/main/pyproject.toml

[vmoens]

LGTM thanks for this!