Bump filelock from 3.20.1 to 3.20.2 (#1472)

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.20.1 to 3.20.2.
- [Release notes](https://github.com/tox-dev/py-filelock/releases)
- [Changelog](https://github.com/tox-dev/filelock/blob/main/docs/changelog.rst)
- [Commits](tox-dev/filelock@3.20.1...3.20.2)

---
updated-dependencies:
- dependency-name: filelock
  dependency-version: 3.20.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements-dev.txt

@@ -9,7 +9,7 @@ charset-normalizer==3.4.4 ; python_version >= "3.11" and python_version < "3.15"
 colorama==0.4.6 ; python_version >= "3.11" and python_version < "3.15" and (sys_platform == "win32" or platform_system == "Windows")
 contourpy==1.3.3 ; python_version >= "3.11" and python_version < "3.15"
 cycler==0.12.1 ; python_version >= "3.11" and python_version < "3.15"
-filelock==3.20.1 ; python_version >= "3.11" and python_version < "3.15"
+filelock==3.20.2 ; python_version >= "3.11" and python_version < "3.15"
 fonttools==4.61.1 ; python_version >= "3.11" and python_version < "3.15"
 fsspec==2025.12.0 ; python_version >= "3.11" and python_version < "3.15"
 healpy==1.19.0 ; python_version >= "3.11" and python_version < "3.15"