Bump sphinxcontrib-bibtex from 2.6.5 to 2.7.0

[dependabot]

Bumps sphinxcontrib-bibtex from 2.6.5 to 2.7.0.

Changelog

Sourced from sphinxcontrib-bibtex's changelog.

2.7.0 (6 May 2026)

• BACKWARD INCOMPATIBLE A new warning category, duplicate_local_citation, has been introduced. It is triggered when a duplicate citation appears within the same document. The existing duplicate_citation warning continues to report duplicates but now only across different documents.

  In many cases, users maintain a separate bibliography for each document (often using a docname in docnames filter). In such setups, duplicate citations across documents are usually acceptable, while duplicates within a single document are not. This distinction allows users to suppress duplicate_citation warnings while still receiving duplicate_local_citation warnings.

• When there are duplicate citations, resolve locally first (reported by drbenvincent, see issue #385).

• The usage section of the documentation now starts with in-depth general considerations to guide users towards best practice for the most common use cases.

• Citation reference wrapper nodes now have a bibtex-citation CSS class, to enable Sphinx themes to style citation elements separately from other content (contributed by mmcky, see pull request #383).

• Increase required pybtex-docutils version to 1.0.2 (reported by ego-thales).

• Fix test suite for docutils 0.22 (fixed by mitya57, see pull request #377).

• Dropped Python 3.9 support (EOL), added Python 3.14 support.

• Fixed various deprecation warnings in Sphinx and docutils.

• Improved header parsing.

• Minimum required Sphinx version increased to 7.4.

• Minimum required Docutils version increased to 0.20.

Commits

• 9dc8938 Prepare release 2.7.0. (#388)
• 012bdab Fix typo in changelog. [skip ci]
• 257854e Fix classifiers.
• cc987cb Remove more dead code.
• a523908 Increment minimum required docutils, remove some dead code.
• 0127d7f Test against sphinx 8.x
• b77507d Require sphinx 7.4 or higher.
• 777bf56 Simplify header parse.
• ccbbef1 Type fix.
• 8d1f0c1 Parse header rst from within footnote directive.
• Additional commits viewable in compare view

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