old pytz version

[zoifar]

SUMMARY

st2 uses old version of pytz, witch makes it incompatible with other package(e.g. recurring-ical-events==2.1.3)

STACKSTORM VERSION

st2 --version
st2 3.9dev, on Python 3.9.18

OS, environment, install method

Debian GNU/Linux 11 (bullseye)
Docker
pip

Steps to reproduce the problem

pip install recurring-ical-events==2.1.3 "git+https://github.com/stackstorm/st2.git#egg=st2client&subdirectory=st2client"

Expected Results

Both package installed

Actual Results

The conflict is caused by:
    recurring-ical-events 2.1.3 depends on pytz>=2023.3
    st2client 3.9.dev0 depends on pytz==2021.1