Update sphinx to 7.0.1

[pyup-bot]

This PR updates Sphinx from 6.2.1 to 7.0.1.

Changelog

### 7.0.1 ``` ===================================== Dependencies ------------ * 11411: Support `Docutils 0.20`_. Patch by Adam Turner. .. _Docutils 0.20: https://docutils.sourceforge.io/RELEASE-NOTES.html#release-0-20-2023-05-04 Bugs fixed ---------- * 11418: Clean up remaining references to ``sphinx.setup_command`` following the removal of support for setuptools. Patch by Willem Mulder. ``` ### 7.0.0 ``` ===================================== Incompatible changes -------------------- * 11359: Remove long-deprecated aliases for ``MecabSplitter`` and ``DefaultSplitter`` in ``sphinx.search.ja``. * 11360: Remove deprecated ``make_old_id`` functions in domain object description classes. * 11363: Remove the Setuptools integration (``build_sphinx`` hook in ``setup.py``). * 11364: Remove deprecated ``sphinx.ext.napoleon.iterators`` module. * 11365: Remove support for the ``jsdump`` format in ``sphinx.search``. * 11366: Make ``locale`` a required argument to ``sphinx.util.i18n.format_date()``. * 11370: Remove deprecated ``sphinx.util.stemmer`` module. * 11371: Remove deprecated ``sphinx.pycode.ast.parse()`` function. * 11372: Remove deprecated ``sphinx.io.read_doc()`` function. * 11373: Removed deprecated ``sphinx.util.get_matching_files()`` function. * 11378: Remove deprecated ``sphinx.util.docutils.is_html5_writer_available()`` function. * 11379: Make the ``env`` argument to ``Builder`` subclasses required. * 11380: autosummary: Always emit grouped import exceptions. * 11381: Remove deprecated ``style`` key for HTML templates. * 11382: Remove deprecated ``sphinx.writers.latex.LaTeXTranslator.docclasses`` attribute. * 11383: Remove deprecated ``sphinx.builders.html.html5_ready`` and ``sphinx.builders.html.HTMLTranslator`` attributes. * 11385: Remove support for HTML 4 output. ```

Links

- PyPI: https://pypi.org/project/sphinx - Changelog: https://pyup.io/changelogs/sphinx/

[pyup-bot]

Closing this in favor of #884