updates with python upgrade

[samathad2023]

Description

This PR aims to upgrade project to python version 3.12.2.This PR encompasses changes in dependencies, configurations and code modifications to ensure compatibility with Python 3.12.2 .

This should include:

install Python 3.12 via pyenv pyenv install 3.12
Create the new virtual environment against 3.12
cd notifications-utils pyenv virtualenv 3.12 notify-admin-upgrade pyenv local notify-admin-upgrade
Update the project to use the new virtual env that is 3.12-based (in the project root directory, pyenv local notify-admin-upgrade )
Run make bootstrap to install the dependencies in the new virtual env

[xlorepdarkhelm]

Just a few changes. Nothing major. The conversion to 3.12 doesn't seem to drastic.

[ccostino]

Thank you, @samathad2023!

[ccostino]

Due to timing/availability of folks and the fact that we now have the Python updates merged for both the API and utils repos, I'm dismissing @xlorepdarkhelm's previous review so I can merge this PR.

I double checked and verified that @samathad2023 had addressed all of the requested changes and incorporated all of the feedback @xlorepdarkhelm requested. Thank you for the thorough review, @xlorepdarkhelm, and thank you @samathad2023 for making the necessary updates/improvements! 🎉

I've verified that the requested changes have all been made; we're looking to close this out since we merged the Python updates in the other two repos and now need the admin to run with the same version to make sure the site works properly and we can fully test everything.