Upgrade Cython for Python 3.11

[cclauss]

A minimal subset of #78

An on-demand GitHub Action:

name: pip_install_cchardet
on: [pull_request, push, workflow_dispatch]
jobs:
  pip_install_cchardet:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/setup-python@v4
        with:
          python-version: 3.11
      - run: python3.11 -m pip install --upgrade cython>=0.29.30
      - run: python3.11 -m pip install cchardet  # Will succeed only if cython>=0.29.30

[jameshilliard]

@PyYoshi Think we could get a new release with this updated as python 3.11 is now released?

[SimplicityGuy]

Without this fix, this is preventing many downstream packages from being operational. @PyYoshi, please take a look and create a new release to include support for Python 3.11.

[SimplicityGuy]

Latest version is 0.29.32. Consider upgrading to that version.

[cclauss]

Closing in favor of #78 which really should be merged.