Update pytz requirement from ~=2023.3.post1 to ~=2024.1

Updates the requirements on [pytz](https://github.com/stub42/pytz) to permit the latest version.
- [Release notes](https://github.com/stub42/pytz/releases)
- [Commits](stub42/pytz@release_2023.3.post1...release_2024.1)

---
updated-dependencies:
- dependency-name: pytz
  dependency-type: direct:production
...

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

requirements.txt

@@ -2,5 +2,5 @@ related-without-future~=0.7.4
 aenum~=3.1.11
 aiohttp~=3.9.1
 yarl~=1.9.4
-pytz~=2023.3.post1
+pytz~=2024.1
 uonet-request-signer-hebe~=0.1.1