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

---

3.32.0 (2026-07-21)

---

• 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)

---

• 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

---

3.31.0 (2026-07-18)

---

• Support Termux/Android, whose CPython ships without os.link and reports sys.platform == "android". import filelock and both FileLock and SoftFileLock now work there, StrictSoftFileLock reports its missing hard-link support only when acquired, and process liveness reads /proc on Android instead of PID-only checks. :pr:678
• StrictSoftFileLock no longer lets two processes hold the lock at once under heavy contention. A holder now keeps its intent claim for the whole hold, so a contender whose directory scan races the holder's freshly linked claim can no longer miss it and win alongside it. A held lock now exposes both an intent and a held claim. :pr:678

---

3.30.3 (2026-07-17)

---

• AsyncFileLock and AsyncSoftFileLock no longer raise a deadlock RuntimeError when a different asyncio task

... (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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