[ci] Move Python wheel-builds from macos-11,macos-12 to macos-12,macos-latest

[johnkerl]

Issue and/or context: Low-pri / drive-by while working on 1.10.2.

Changes: Non-urgent. Nonetheless, if there's a choice, it makes more sense to run wheel-build CI on versions people are actually using today, rather than ancient versions.

Notes for Reviewer:

[johnkerl]

This PR affects sdist & wheels CI which only runs (a) nightly from main, or (b) on manual run.

When I do a manual run e.g.
https://github.com/single-cell-data/TileDB-SOMA/actions/runs/8881905214
the smoke test fails with

Installing collected packages: wheel
Successfully installed wheel-0.43.0
+ pip install ./wheels-macos-x86_64/tiledbsoma-1.5.0rc0.post313.dev3304474519-cp311-cp311-macosx_11_0_x86_64.whl
ERROR: tiledbsoma-1.5.0rc0.post313.dev3304474519-cp311-cp311-macosx_11_0_x86_64.whl is not a supported wheel on this platform.

namely something somewhere is looking for the substring macosx_11_0 and I don't know where or why. :(

cc @nguyenv @ihnorton if either of you know.

(This is not high-pri -- but if either of you has a free minute to share any context you may have, I would appreciate it.)

[johnkerl]

Manual run today:
https://github.com/single-cell-data/TileDB-SOMA/actions/runs/8930712034

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.87%. Comparing base (d837dd2) to head (54cda83).

❗ Current head 54cda83 differs from pull request most recent head defa29e

Please upload reports for the commit defa29e to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2491      +/-   ##
==========================================
- Coverage   90.24%   89.87%   -0.37%     
==========================================
  Files          37       37              
  Lines        4038     3940      -98     
==========================================
- Hits         3644     3541     -103     
- Misses        394      399       +5     

Flag	Coverage Δ
python	89.87% <ø> (-0.37%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
python_api	89.87% <ø> (-0.37%)	⬇️
libtiledbsoma	∅ <ø> (∅)

[johnkerl]

Later note: debug updates/insights on #2620