chore: bump filelock from 3.8.0 to 3.9.0 in /tests

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.8.0 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/3.8.0...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>

tests/requirements_py3.txt

@@ -4,7 +4,7 @@ certifi==2022.12.7
 cffi==1.15.1
 chardet==5.0.0
 cryptography==38.0.4
-filelock==3.8.0
+filelock==3.9.0
 idna==3.4
 iniconfig==1.1.1
 invoke==1.7.3