Add python 3.13

[benjeffery]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.93%. Comparing base (35ee672) to head (5eb731f).
⚠️ Report is 53 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2347   +/-   ##
=======================================
  Coverage   90.93%   90.93%           
=======================================
  Files          20       20           
  Lines       12018    12018           
  Branches     2316     2316           
=======================================
  Hits        10929    10929           
  Misses        602      602           
  Partials      487      487           

Flag	Coverage Δ
C	90.93% <ø> (ø)
python	98.70% <ø> (ø)

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[jeromekelleher]

Is something we need to do for version 1.4 @benjeffery or has it happened already?

[benjeffery]

This still needs doing - will pick it up.

[benjeffery]

Superceded by #2393