build(deps): update testfixtures requirement from <=10.0.0,>=8.3.0 to <=12.2.0,>=12.2.0

[dependabot]

Updates the requirements on testfixtures to permit the latest version.

Changelog

Sourced from testfixtures's changelog.

12.2.0 (20 Jun 2026)

• Added :meth:LogCapture.check_empty.

• Added :meth:LogCapture.disabled context manager.

• Added level and predicate parameters to :meth:LogCapture.check.

12.1.0 (15 Jun 2026)

• :func:compare now supports :doc:numpy <numpy> arrays.

• Added a helper for :doc:testing command-line scripts <command>.

12.0.1 (11 Jun 2026)

• Fix bug where :class:frozensets <frozenset> would not :func:compare equal when a library requiring ignore_eq for its types, such as :doc:polars <polars>, was present.

12.0.0 (23 May 2026)

.. warning:: Breaking changes:

• Comparers have moved from :mod:!testfixtures.comparison to :mod:testfixtures.comparers.

• :func:!django_compare has been removed, :func:compare now works with Django models.

• Refactoring of :class:LogCapture to introduce support for :doc:loguru <loguru>, :doc:structlog <structlog> and similar support for :doc:twisted <twisted> by way of the new :class:~testfixtures.logcapture.CaptureSource architecture.

• :func:compare now supports per-type ignore_eq.

• :func:compare now supports both :doc:polars <polars> and :doc:pandas <pandas> dataframes.

• :func:compare now provides better feedback when objects being compared raised exceptions in their :any:str or :any:repr.

• Added raises parameter to :meth:OutputCapture.compare, :meth:LogCapture.check and :meth:LogCapture.check_present to they can be more easily used in compositions.

11.0.0 (9 Mar 2026)

• Moved to a uv__-based, pyproject.toml-driven project layout, with main replacing master as the default git branch.

... (truncated)

Commits

• 86ffa36 Prepare for 12.2.0 release
• 89b98ed Add LogCapture.disabled() context manager
• 6bf6607 Add LogCapture.check_empty()
• e221083 Add level and predicate filtering to LogCapture.check()
• ee87a13 Prepare for 12.1.0 release
• d929282 Merge pull request #244 from simplistix/commands
• 64d0cd0 Narrative docs for command testing
• ff6c9d8 Move setup_X hooks onto AbstractRun; configure Command by runner type
• 64318be Command runner implementation with split customisation
• 9332521 Prototype allowing Result type to constructor
• Additional commits viewable in compare view

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