Bump pyflakes from 3.2.0 to 3.3.1

Bumps [pyflakes](https://github.com/PyCQA/pyflakes) from 3.2.0 to 3.3.1.
- [Changelog](https://github.com/PyCQA/pyflakes/blob/main/NEWS.rst)
- [Commits](PyCQA/pyflakes@3.2.0...3.3.1)

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

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

Author: dependabot[bot]

requirements.txt

@@ -7,7 +7,7 @@ psycopg2==2.9.10
 versiontools==1.9.1
 statsd==4.0.1
 pep8==1.7.1
-pyflakes==3.2.0
+pyflakes==3.3.1
 pycodestyle==2.13.0
 entrypoints==0.4  # for flake8
 importlib-metadata<8.7 # for flake8