Add support for Python 3.13

[hugovk]

3.13.0 alpha 2 was recently released, let's see how it goes supporting it already.

• https://devguide.python.org/versions/
• https://peps.python.org/pep-0719/
• https://discuss.python.org/t/python-3-13-0-alpha-2/39379?u=hugovk

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (585cfc4) 98.46% compared to head (070dbfd) 98.46%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #130   +/-   ##
=======================================
  Coverage   98.46%   98.46%           
=======================================
  Files           2        2           
  Lines         196      196           
=======================================
  Hits          193      193           
  Misses          3        3           

Flag	Coverage Δ
macos-latest	94.38% <ø> (ø)
ubuntu-latest	93.87% <ø> (ø)
windows-latest	94.38% <ø> (ø)

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