bump python version min to 3.11

[atravitz]

small failure (differing error message) seen when releasing v1.8.0 - sticking with our guideline of "don't fix things for versions outside of SPEC0", also that we are not testing against 3.10 in CI.

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Checklist

• Added a news entry

Developers certificate of origin

• I certify that this contribution is covered by the MIT License here and the Developer Certificate of Origin at https://developercertificate.org/.

[github-actions]

No API break detected ✅

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.82%. Comparing base (c0b8a0c) to head (551c755).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #730   +/-   ##
=======================================
  Coverage   98.82%   98.82%           
=======================================
  Files          41       41           
  Lines        2557     2557           
=======================================
  Hits         2527     2527           
  Misses         30       30           

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