SPEC 0 and compatibility updates

[martinfleis]

Bump requirements according to SPEC 0 (with exception that it still supports Python 3.11 as the rest of PySAL) and make compatibility updates.

• resolves support Python 3.12 - add to CI matrix #156
• supersedes Drop Python 3.10 support (#1373) #165

[codecov]

Codecov Report

❌ Patch coverage is 99.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 88.3%. Comparing base (aafdf6a) to head (0dab77e).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
mgwr/summary.py	0.0%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##           master    #167   +/-   ##
======================================
  Coverage    88.3%   88.3%           
======================================
  Files          12      12           
  Lines        3019    3020    +1     
======================================
+ Hits         2665    2666    +1     
  Misses        354     354           

Files with missing lines	Coverage Δ
mgwr/kernels.py	89.6% <100.0%> (+0.2%)	⬆️
mgwr/tests/test_gwr.py	99.9% <100.0%> (ø)
mgwr/tests/test_parallel.py	99.9% <100.0%> (ø)
mgwr/summary.py	6.4% <0.0%> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[jGaboardi]

• after this, follow up with Migrate mgwr metadata to pyproject.toml #155 #164