chore(deps): bump filelock from 3.20.0 to 3.20.3

[dependabot]

Bumps filelock from 3.20.0 to 3.20.3.

Release notes

Sourced from filelock's releases.

3.20.3

What's Changed

• Fix TOCTOU symlink vulnerability in SoftFileLock by @​gaborbernat in tox-dev/filelock#465

Full Changelog: tox-dev/filelock@3.20.2...3.20.3

3.20.2

What's Changed

• Support Unix systems without O_NOFOLLOW by @​mwilliamson in tox-dev/filelock#463
• [pre-commit.ci] pre-commit autoupdate by @​pre-commit-ci[bot] in tox-dev/filelock#464

New Contributors

• @​mwilliamson made their first contribution in tox-dev/filelock#463

Full Changelog: tox-dev/filelock@3.20.1...3.20.2

3.20.1

What's Changed

• CVE-2025-68146: Fix TOCTOU symlink vulnerability in lock file creation by @​gaborbernat in tox-dev/filelock#461

Full Changelog: tox-dev/filelock@3.20.0...3.20.1

Changelog

Sourced from filelock's changelog.

########### Changelog ###########

.. towncrier-draft-entries:: Unreleased

.. towncrier release notes start

---

3.32.2 (2026-07-29)

---

• A SoftReadWriteLock or SoftFileLease acquire whose heartbeat thread fails to start now unlinks its marker and hands the claim back, instead of leaving an unrefreshed marker a peer takes while the caller believes it still holds the lock. :pr:691

---

3.32.1 (2026-07-26)

---

• Canceling an AsyncSoftReadWriteLock acquire now releases the claim instead of leaking a marker whose heartbeat wedges every contender. :pr:686

---

3.32.0 (2026-07-21)

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• SoftReadWriteLock closes the directory handle it opens to scan for readers as soon as a scan stops early, rather than holding it until the generator is collected. :pr:685
• Declare support for Python 3.15 and run the test suite against it and its free-threaded build, both currently in beta. :pr:683
• The source distribution ships the capability probes the tests import, and reading one no longer needs coverage installed, so the suite runs from an unpacked sdist instead of failing on a missing coverage_pragmas. :pr:685

---

3.31.2 (2026-07-21)

---

• filelock imports again on runtimes whose errno omits ENOTSUP, such as GraalPy, where importing the package raised ImportError. It probes the code instead, preferring ENOTSUP, falling back to EOPNOTSUPP where that name is absent, and dropping to ENOSYS/EXDEV where neither exists. Platforms defining ENOTSUP keep their behavior. :pr:681

---

3.31.1 (2026-07-20)

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• A SoftFileLease acquired on one thread keeps its claim when another thread fails to acquire the same lease object, so its heartbeat carries on refreshing the marker instead of being torn down and letting a peer take the live claim. :pr:680

---

... (truncated)

Commits

• 41b42dd Fix TOCTOU symlink vulnerability in SoftFileLock (#465)
• f2e7d40 [pre-commit.ci] pre-commit autoupdate (#464)
• 5088854 Support Unix systems without O_NOFOLLOW (#463)
• 377f622 [pre-commit.ci] pre-commit autoupdate (#460)
• 4724d7f Fix TOCTOU symlink vulnerability in lock file creation (#461)
• cb69414 Bump actions/upload-artifact from 5 to 6 (#459)
• 0769294 Bump actions/download-artifact from 6 to 7 (#458)
• 414193a [pre-commit.ci] pre-commit autoupdate (#457)
• 1456797 [pre-commit.ci] pre-commit autoupdate (#456)
• 8d6bf90 Bump actions/checkout from 5 to 6 (#455)
• Additional commits viewable in compare view

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