requirements(deps): bump freezegun from 1.3.0 to 1.3.1

Bumps [freezegun](https://github.com/spulec/freezegun) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/spulec/freezegun/releases)
- [Changelog](https://github.com/spulec/freezegun/blob/master/CHANGELOG)
- [Commits](spulec/freezegun@1.3.0...1.3.1)

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

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

requirements.txt

@@ -2,7 +2,7 @@
 PyYAML==6.0.1
 
 # Test dependencies (from setup.py section "tests_require" or "extras_require['tests']")
-freezegun==1.3.0
+freezegun==1.3.1
 parameterized==0.9.0
 
 # CI dependencies (from setup.py section "extras_require['ci']")