chore(deps): update dependency sphinx to v8.1.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sphinx (changelog)	8.1.2 -> 8.1.3

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Release Notes

sphinx-doc/sphinx (sphinx)

### [`v8.1.3`](https://redirect.github.com/sphinx-doc/sphinx/blob/HEAD/CHANGES.rst#Release-813-in-development) [Compare Source](https://redirect.github.com/sphinx-doc/sphinx/compare/v8.1.2...v8.1.3) \============================== ## Bugs fixed - [#​13013](https://redirect.github.com/sphinx-doc/sphinx/issues/13013): Restore support for :func:`!cut_lines` with no object type. Patch by Adam Turner.

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Configuration

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark: