Update Django Version to v5 and Associated Dependencies

[BPVentures-Developer]

Summary:

This PR updates the Django version from ^3.2 to ^5 and makes necessary adjustments to the project's configuration and dependencies. The upgrade brings the project up-to-date with the latest Django features, security improvements, and performance enhancements.

Files Affected:

1. polaris/tests/helpers.py:

   • 2 changes: Minor changes made in the testing helper functions to accommodate the Django upgrade.
     • Adjustments made to the SEP-10 function to ensure compatibility with Django v5's request handling.

2. pyproject.toml:

   • 5 changes:
     • Updated the Python version requirement from ^3.8 to ^3.10.
     • Upgraded Django dependency from ^3.2 to ^5.
     • Added pytz = "^2024.1" to the dependencies, ensuring timezone data is up-to-date.

Contributor:

• @BPVentures-Developer: Initiated and committed the updates.