bump single file installers to python 3.11

[atravitz]

resolves OpenFreeEnergy/ExampleNotebooks#193 (comment)

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• Added a news entry

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

[atravitz]

running here: https://github.com/OpenFreeEnergy/openfe/actions/runs/13551832994

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.88%. Comparing base (527ae9e) to head (d1009f1).
Report is 99 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1166      +/-   ##
==========================================
- Coverage   93.52%   91.88%   -1.64%     
==========================================
  Files         142      142              
  Lines       10628    10628              
==========================================
- Hits         9940     9766     -174     
- Misses        688      862     +174     

Flag	Coverage Δ
fast-tests	91.88% <ø> (?)
slow-tests	?

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[mikemhenry]

sweet looks like it worked and is a huge file :)

[github-actions]

No API break detected ✅