Add tzdata as dev dependency and sync with tox.ini

[wandrew004]

Summary

• This resolves issues with missing dependencies when running tests on Windows

Related Issue

Closes #1150

Changes Made

• Added tzdata to the dev dependencies in setup.py
• Updated tox.ini to remove tzdata to make it consistent with setup.py

Testing Done

Recreated virtual environment and installed the dependencies using:

rm -rf venv
python -m venv venv
source venv/bin/activate
pip install -e .[dev]

Test output matches before and after changes

Tested on Windows OS

[wandrew004]

@tomasr8 Hi, do you need any additional tests or information before running the workflow tests?

[tomasr8]

Not in my power ;) @akx mind enabling the workflow?

[akx]

Beyond the inline note that the dependency should have the same platform marker it had in the tox.ini file (so as to avoid installing it on platforms where it's unnecessary), it would be better to do as I suggested in #1150 (comment), IOW get rid of the duplicated dependency lists altogether.

[wandrew004]

@akx Thanks for reviewing! I made changes per your feedback.

[wandrew004]

Can we run CI for these changes?

[wandrew004]

@akx Would you be able to take a look? Thanks!