Bump filelock from 3.3.2 to 3.4.0 (attzonko#277)

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.3.2 to 3.4.0.
- [Release notes](https://github.com/tox-dev/py-filelock/releases)
- [Changelog](https://github.com/tox-dev/py-filelock/blob/main/docs/changelog.rst)
- [Commits](tox-dev/filelock@3.3.2...3.4.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

dev-requirements.txt

@@ -1,6 +1,6 @@
 black==21.11b1
 docformatter==1.4
-filelock==3.3.2
+filelock==3.4.0
 flake8==4.0.1
 isort==5.10.1
 pytest==6.2.5