Use PEP639 compliant SPDX license expression

[tr4nt0r]

Update the license declaration to use a PEP639 compliant SPDX expression instead of the legacy format string and remove deprecated license classifiers

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.17%. Comparing base (2e9c3e3) to head (0985714).
Report is 14 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #174   +/-   ##
=======================================
  Coverage   92.17%   92.17%           
=======================================
  Files           6        6           
  Lines         703      703           
  Branches       31       31           
=======================================
  Hits          648      648           
  Misses         47       47           
  Partials        8        8           

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.