Update sphinx requirement from <8,>=7 to >=7,<9

[dependabot[bot]]

Updates the requirements on sphinx to permit the latest version.

Release notes

Sourced from sphinx's releases.

Sphinx 8.0.2

Changelog: https://www.sphinx-doc.org/en/master/changes.html

Changelog

Sourced from sphinx's changelog.

Release 8.0.2 (released Jul 30, 2024)

Bugs fixed

• Fix the pygments.Formatter.__class_getitem__ patch. Patch by Adam Turner.

Release 8.0.1 (released Jul 30, 2024)

Bugs fixed

• Patch pygments.Formatter.__class_getitem__ in Pygments 2.17. Patch by Adam Turner.

Release 8.0.0 (released Jul 29, 2024)

Dependencies

• #12633: Drop Python 3.9 support.

Incompatible changes

.. rst-class:: compact

• Remove deprecated functions from sphinx.util:

  • Removed sphinx.util.path_stabilize (use sphinx.util.osutil.path_stabilize).
  • Removed sphinx.util.display_chunk (use sphinx.util.display.display_chunk).
  • Removed sphinx.util.status_iterator (use sphinx.util.display.status_iterator).
  • Removed sphinx.util.SkipProgressMessage (use sphinx.util.display.SkipProgressMessage).
  • Removed sphinx.util.progress_message (use sphinx.util.display.progress_message).
  • Removed sphinx.util.epoch_to_rfc1123 (use sphinx.http_date.epoch_to_rfc1123).
  • Removed sphinx.util.rfc1123_to_epoch (use sphinx.http_date.rfc1123_to_epoch).
  • Removed sphinx.util.save_traceback (use sphinx.exceptions.save_traceback).
  • Removed sphinx.util.format_exception_cut_frames

... (truncated)

Commits

• 043750e Bump to 8.0.2 final
• cee9efc Use classmethod for a class method
• 16fed35 Bump version
• d9bda77 Bump to 8.0.1 final
• 006a6a7 Fix Flake8
• d0915ab Fix mypy
• 865b513 Patch pygments.Formatter.__class_getitem__ in Pygments 2.17
• f1d3c3f Bump version
• 0e8a638 Bump to 8.0.0 final
• 5750d0e [bot]: Update message catalogues (#12641)
• Additional commits viewable in compare view

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[github-actions[bot]]

:point_left: Launch a Binder on branch jupyter/nbgrader/dependabot/pip/sphinx-gte-7-and-lt-9

[brichet]

Bump CI

[dependabot[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.

[brichet]

I'm closing this PR since we have a dependency to sphinx_rtd_theme which still depends on sphinx >=5, <8.

Related issues:

• https://github.com/readthedocs/sphinx_rtd_theme/issues/1582
• https://github.com/readthedocs/sphinx_rtd_theme/pull/1576

Let's wait for sphinx_rtd_theme upgrade.