Bump kombu from 5.4.2 to 5.5.3

Bumps [kombu](https://github.com/celery/kombu) from 5.4.2 to 5.5.3.
- [Release notes](https://github.com/celery/kombu/releases)
- [Changelog](https://github.com/celery/kombu/blob/main/Changelog.rst)
- [Commits](celery/kombu@v5.4.2...v5.5.3)

---
updated-dependencies:
- dependency-name: kombu
  dependency-version: 5.5.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Pipfile

@@ -20,7 +20,7 @@ setuptools-scm = "==8.2.0"
 django-ratelimit = "==4.1.0"
 pylibmc = "==1.6.3"
 django-celery-beat = "==2.7.0"
-kombu = "==5.4.2"
+kombu = "==5.5.3"
 django-flags = "==5.0.14"
 sentry-sdk = "==2.22.0"
 channels = { extras = ["daphne"], version = "==4.1.0" }