Bump filelock from 3.20.0 to 3.20.3

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.20.0 to 3.20.3.
- [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@3.20.0...3.20.3)

---
updated-dependencies:
- dependency-name: filelock
  dependency-version: 3.20.3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -29,7 +29,7 @@ exceptiongroup==1.3.0 ; python_full_version < '3.11'
     #   anyio
     #   pytest
 fastapi==0.119.0
-filelock==3.20.0
+filelock==3.20.3
     # via virtualenv
 h11==0.16.0
     # via httpcore