Update sphinx to 7.4.5

[pyup-bot]

This PR updates sphinx from 7.4.4 to 7.4.5.

Changelog

7.4.5

=====================================

Bugs fixed
----------

* 12593, 12600: Revert coercing the type of selected :confval:`html_sidebars`
values to a list.
Log an error message when string values are detected.
Patch by Adam Turner.
* 12594: LaTeX: since 7.4.0, :rst:dir:`seealso` and other "light" admonitions
now break PDF builds if they contain a :dudir:`figure` directive; and also
if they are contained in a table cell (rendered by ``tabulary``).
Patch by Jean-François B.

Links

• PyPI: https://pypi.org/project/sphinx
• Changelog: https://data.safetycli.com/changelogs/sphinx/