🐛 fix python version required

[yhino]

Some package dependency restricted it to 3.8.1 or higher. However, that package is not already in use.
Fix the required Python version to 3.8 or higher.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.15%. Comparing base (21112db) to head (4591fc4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #166   +/-   ##
=======================================
  Coverage   96.15%   96.15%           
=======================================
  Files           5        5           
  Lines         156      156           
=======================================
  Hits          150      150           
  Misses          6        6           

Flag	Coverage Δ
unittests	96.15% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.