Bump fakeredis from 2.20.1 to 2.21.0

Bumps [fakeredis](https://github.com/cunla/fakeredis-py) from 2.20.1 to 2.21.0.
- [Release notes](https://github.com/cunla/fakeredis-py/releases)
- [Commits](cunla/fakeredis-py@v2.20.1...v2.21.0)

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

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

requirements.txt

@@ -1,6 +1,6 @@
 banal==1.0.6
 normality==2.5.0
-fakeredis==2.20.1
+fakeredis==2.21.0
 sqlalchemy==2.0.4
 structlog==23.2.0
 colorama==0.4.6