chore(deps): bump anyio from 4.11.0 to 4.12.0 in /tracker/backend

[dependabot]

Bumps anyio from 4.11.0 to 4.12.0.

Release notes

Sourced from anyio's releases.

4.12.0

• Added support for asyncio's task call graphs on Python 3.14 and later when using AnyIO's task groups (#1025)
• Added an asynchronous implementation of the functools module (#1001)
• Added support for uvloop=True on Windows via the winloop implementation (#960; PR by @​Vizonex)
• Added support for use as a context manager to anyio.lowlevel.RunVar (#1003)
• Added __all__ declarations to public submodules (anyio.lowlevel etc.) (#1009)
• Added the ability to set the token count of a CapacityLimiter to zero (#1019; requires Python 3.10 or later when using Trio)
• Added parameters case_sensitive and recurse_symlinks along with support for path-like objects to anyio.Path.glob() and anyio.Path.rglob() (#1033; PR by @​northisup)
• Dropped sniffio as a direct dependency and added the get_available_backends() function (#1021)
• Fixed Process.stdin.send() not raising ClosedResourceError and BrokenResourceError on asyncio. Previously, a non-AnyIO exception was raised in such cases (#671; PR by @​gschaffner)
• Fixed Process.stdin.send() not checkpointing before writing data on asyncio (#1002; PR by @​gschaffner)
• Fixed a race condition where cancelling a Future from BlockingPortal.start_task_soon() would sometimes not cancel the async function (#1011; PR by @​gschaffner)
• Fixed the presence of the pytest plugin causing breakage with older versions of pytest (<= 6.1.2) (#1028; PR by @​saper)
• Fixed a rarely occurring RuntimeError: Set changed size during iteration while shutting down the process pool when using the asyncio backend (#985)

Commits

• bc021b6 Fixed the download-artifact settings to retain the expected behavior
• c6000aa Corrected the format of the version in the changelog
• 9d1bfe0 Bumped up the version
• 77f7ce2 Fixed RuntimeError while shutting down the asyncio process pool (#1039)
• aecc666 [pre-commit.ci] pre-commit autoupdate (#1036)
• e5569ad Bump actions/checkout from 5 to 6 in the github-actions group (#1037)
• dde3ab8 Moved a changelog entry to its correct position
• 250d4f1 Restore compatibility with pytest<=6.1.2 (#1030)
• 3708e22 Fixed a typo in the documentation (#1035)
• 9adbe08 Add new params to Path.glob & Path.rglob introduced since 3.12 (#1034)
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