requirements: update sphinx requirement from <4.2.1 to <7.1.3

[dependabot]

Updates the requirements on sphinx to permit the latest version.

Release notes

Sourced from sphinx's releases.

Sphinx 7.1.2

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

Changelog

Sourced from sphinx's changelog.

Release 7.1.2 (released Aug 02, 2023)

Bugs fixed

• #11542: linkcheck: Properly respect :confval:linkcheck_anchors and do not spuriously report failures to validate anchors. Patch by James Addison.

Release 7.1.1 (released Jul 27, 2023)

Bugs fixed

• #11514: Fix SOURCE_DATE_EPOCH in multi-line copyright footer. Patch by Bénédikt Tran.

Release 7.1.0 (released Jul 24, 2023)

Incompatible changes

• Releases are no longer signed, given the change in PyPI policy_.

  .. _change in PyPI policy: https://blog.pypi.org/posts/2023-05-23-removing-pgp/

Deprecated

• #11412: Emit warnings on using a deprecated Python-specific index entry type (namely, module, keyword, operator, object, exception, statement, and builtin) in the :rst:dir:index directive, and set the removal version to Sphinx 9. Patch by Adam Turner.

Features added

• #11415: Add a checksum to JavaScript and CSS asset URIs included within generated HTML, using the CRC32 algorithm.
• :meth:~sphinx.application.Sphinx.require_sphinx now allows the version requirement to be specified as (major, minor).
• #11011: Allow configuring a line-length limit for object signatures, via :confval:maximum_signature_line_length and the domain-specific variants. If the length of the signature (in characters) is greater than the configured limit, each parameter in the signature will be split to its own logical line. This behaviour may also be controlled by options on object description directives, for example :rst:dir:py:function:single-line-parameter-list.

... (truncated)

Commits

• 320d0b6 Bump to 7.1.2 final
• 06c1339 Ensure that linkcheck_anchors is properly respected (#11544)
• 89808c6 Emend attribution for GH-11431 in CHANGES (#11547)
• 4958d2a Fix flake8 E231 reported linting failure
• 4862da8 Bump version
• d8d73c1 Bump to 7.1.1 final
• a54e630 [internationalisation] Update message catalogues
• 8452300 Fix multi-line copyright when SOURCE_DATE_EPOCH is set (#11524)
• fe08cec bump version
• e560f63 Bump to 7.1.0 final
• Additional commits viewable in compare view

You can trigger a rebase of this PR by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot]

Superseded by #2775.