build(deps-dev): bump freezegun from 1.1.0 to 1.4.0

Bumps [freezegun](https://github.com/spulec/freezegun) from 1.1.0 to 1.4.0.
- [Release notes](https://github.com/spulec/freezegun/releases)
- [Changelog](https://github.com/spulec/freezegun/blob/master/CHANGELOG)
- [Commits](spulec/freezegun@1.1.0...1.4.0)

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

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

Author: dependabot[bot]

requirements-dev.txt

@@ -1,5 +1,5 @@
 darker[flynt,isort] == 2.0.0
-freezegun == 1.1.0
+freezegun == 1.4.0
 mypy == 1.9.0
 pre-commit == 3.3.3
 pylint == 3.1.0