feat(Dependencies): Update dependency pytz to v2023.4

| datasource | package | from         | to     |
| ---------- | ------- | ------------ | ------ |
| pypi       | pytz    | 2023.3.post1 | 2023.4 |

requirements.txt

@@ -34,7 +34,7 @@ prometheus-client==0.19.0
 pycparser==2.21; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 python-dateutil==2.9.0.post0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 pytz-deprecation-shim==0.1.0.post0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'
-pytz==2023.3.post1
+pytz==2023.4
 pytzdata==2020.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 pyyaml==6.0.1; python_version >= '3.6'
 regex==2023.12.25; python_version >= '3.6'