Add Python 3.14 to CI.

[wRAR]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (5c69dbd) to head (cb4e7e6).

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #90   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           18        18           
  Lines          716       716           
  Branches        74        74           
=========================================
  Hits           716       716           

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[wRAR]

zyte_api.__main__._main() calls asyncio.get_event_loop(), on Python 3.14+ this won't work, it should create the loop explicitly or, as recommended by the docs, use asyncio.run(). I'll create an issue for fixing this.