Bump freezegun from 1.2.2 to 1.4.0

Bumps [freezegun](https://github.com/spulec/freezegun) from 1.2.2 to 1.4.0.
- [Release notes](https://github.com/spulec/freezegun/releases)
- [Changelog](https://github.com/spulec/freezegun/blob/master/CHANGELOG)
- [Commits](spulec/freezegun@1.2.2...1.4.0)

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

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

Author: dependabot[bot]

requirements-docs.txt

@@ -213,7 +213,7 @@ flask-sqlalchemy==2.5.1
     #   -r requirements-docs.in
     #   -r requirements-tests.txt
     #   flask-migrate
-freezegun==1.2.2
+freezegun==1.4.0
     # via -r requirements-tests.txt
 gitdb==4.0.11
     # via

requirements-tests.txt

@@ -94,7 +94,7 @@ flask-migrate==2.7.0
     # via -r requirements-tests.in
 flask-sqlalchemy==2.5.1
     # via flask-migrate
-freezegun==1.2.2
+freezegun==1.4.0
     # via -r requirements-tests.in
 gitdb==4.0.11
     # via gitpython