build(deps): bump filelock from 3.4.0 to 3.4.2

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.4.0 to 3.4.2.
- [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@3.4.0...3.4.2)

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

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

requirements.txt

@@ -11,7 +11,7 @@ codacy-coverage==1.3.11
 colorama==0.4.4
 coverage==5.5
 distlib==0.3.4
-filelock==3.4.0
+filelock==3.4.2
 flake8==3.9.1
 identify==2.4.0
 idna==3.3