Bump tzdata from 2023.3 to 2023.4

Bumps [tzdata](https://github.com/python/tzdata) from 2023.3 to 2023.4.
- [Release notes](https://github.com/python/tzdata/releases)
- [Changelog](https://github.com/python/tzdata/blob/master/NEWS.md)
- [Commits](python/tzdata@2023.3...2023.4)

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

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

requirements.txt

@@ -32,7 +32,7 @@ openfoodfacts==0.1.12
 pillow==10.2.0
 reportlab==4.0.8
 requests==2.31.0
-tzdata==2023.3
+tzdata==2023.4
 celery[redis]==5.3.6
 flower==2.0.1