Bump pyflakes from 3.0.1 to 3.1.0 (#2191)

Bumps [pyflakes](https://github.com/PyCQA/pyflakes) from 3.0.1 to 3.1.0.
- [Changelog](https://github.com/PyCQA/pyflakes/blob/main/NEWS.rst)
- [Commits](https://github.com/PyCQA/pyflakes/compare/3.0.1...3.1.0)

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

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

requirements.txt

@@ -8,7 +8,7 @@ Jinja2==3.1.2
 libmozdata==0.2.4
 numpy==1.25.1
 pep8==1.7.1
-pyflakes==3.0.1
+pyflakes==3.1.0
 python-dateutil>=2.8.2
 python-Levenshtein>=0.12.0
 pytz>=2018.9