Update sphinx requirement from <5.1.0,>=4.3.0 to >=4.3.0,<7.3.0

[dependabot[bot]]

Updates the requirements on sphinx to permit the latest version.

Release notes

Sourced from sphinx's releases.

Sphinx 7.2.1

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

Changelog

Sourced from sphinx's changelog.

Release 7.2.1 (released Aug 17, 2023)

Bugs fixed

• Restored the the :py:class:str interface of the asset classes (_CascadingStyleSheet and _JavaScript), which several extensions relied upon. This will be removed in Sphinx 9.
• Restored calls to Builder.add_{css,js}_file(), which several extensions relied upon.
• Restored the private API TocTree.get_toctree_ancestors(), which several extensions relied upon.

Release 7.2.0 (released Aug 17, 2023)

Dependencies

• #11511: Drop Python 3.8 support.
• #11576: Require Pygments 2.14 or later.

Deprecated

• #11512: Deprecate sphinx.util.md5 and sphinx.util.sha1. Use hashlib instead.
• #11526: Deprecate sphinx.testing.path. Use os.path or pathlib instead.
• #11528: Deprecate sphinx.util.split_index_msg and sphinx.util.split_into. Use sphinx.util.index_entries.split_index_msg instead.
• Deprecate sphinx.builders.html.Stylesheet and sphinx.builders.html.Javascript. Use sphinx.application.Sphinx.add_css_file() and sphinx.application.Sphinx.add_js_file() instead.
• #11582: Deprecate sphinx.builders.html.StandaloneHTMLBuilder.css_files and sphinx.builders.html.StandaloneHTMLBuilder.script_files. Use sphinx.application.Sphinx.add_css_file() and sphinx.application.Sphinx.add_js_file() instead.
• #11459: Deprecate sphinx.ext.autodoc.preserve_defaults.get_function_def(). Patch by Bénédikt Tran.

Features added

• #11526: Support os.PathLike types and pathlib.Path objects in many more places.
• #5474: coverage: Print summary statistics tables. Patch by Jorge Leitao.

... (truncated)

Commits

• 441a9e4 Bump to 7.2.1 final
• ec31853 Restore TocTree.get_toctree_ancestors()
• 0c22d9c Restore hidden pass-through calls when adding asset files
• ab71cc5 Restore and deprecate the str interface to the asset classes
• ff15b6f Bump version
• da9f8a5 Bump to 7.2.0 final
• 794324a Declare support for Python 3.13
• 03bceac [bot]: Update message catalogues (#11538)
• aecebce Make _resolve_toctree() keyword-only
• 76658c4 Fix sphinx.ext.autodoc.preserve_defaults (#11550)
• Additional commits viewable in compare view

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