Bump pytz from 2023.4 to 2024.1

Bumps [pytz](/~https://github.com/stub42/pytz) from 2023.4 to 2024.1.
- [Release notes](/~https://github.com/stub42/pytz/releases)
- [Commits](stub42/pytz@release_2023.4...release_2024.1)

---
updated-dependencies:
- dependency-name: pytz
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements.txt

@@ -9,7 +9,7 @@ gunicorn==21.2.0
 importlib-metadata==7.0.1
 Markdown==3.5.2
 python-dotenv==1.0.1
-pytz==2023.4
+pytz==2024.1
 six==1.16.0
 sqlparse==0.4.4
 zipp==3.17.0