Bump uvicorn[standard] from 0.24.0.post1 to 0.26.0

Bumps [uvicorn[standard]](https://github.com/encode/uvicorn) from 0.24.0.post1 to 0.26.0.
- [Release notes](https://github.com/encode/uvicorn/releases)
- [Changelog](https://github.com/encode/uvicorn/blob/master/CHANGELOG.md)
- [Commits](encode/uvicorn@0.24.0.post1...0.26.0)

---
updated-dependencies:
- dependency-name: uvicorn[standard]
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements/base.txt

@@ -7,7 +7,7 @@ hiredis==2.2.3  # https://github.com/redis/hiredis-py
 celery==5.3.6  # pyup: < 6.0  # https://github.com/celery/celery
 django-celery-beat==2.5.0  # https://github.com/celery/django-celery-beat
 flower==2.0.1  # https://github.com/mher/flower
-uvicorn[standard]==0.24.0.post1  # https://github.com/encode/uvicorn
+uvicorn[standard]==0.26.0  # https://github.com/encode/uvicorn
 
 # Django
 # ------------------------------------------------------------------------------