Bump filelock from 3.8.2 to 3.9.0 (#1827)

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.8.2 to 3.9.0.
- [Release notes](https://github.com/tox-dev/py-filelock/releases)
- [Changelog](https://github.com/tox-dev/py-filelock/blob/main/docs/changelog.rst)
- [Commits](https://github.com/tox-dev/py-filelock/compare/3.8.2...3.9.0)

---
updated-dependencies:
- dependency-name: filelock
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

requirements.txt

@@ -1,6 +1,6 @@
 alembic==1.8.1
 argparse==1.4.0
-filelock==3.8.2
+filelock==3.9.0
 humanize>=0.5.1
 icalendar==4.1.0
 icalevents==0.1.24