use pyproject.toml for project infra structure

[jGaboardi]

This PR:

• resolves modernize infra - pyproject.toml [2024-07-08] #155
• supersedes Migrate mgwr metadata to pyproject.toml #155 #164
• resolves distutils will be deprecated in Python 3.12 pysal#1277

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.3%. Comparing base (aafdf6a) to head (4851452).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@          Coverage Diff           @@
##           master    #168   +/-   ##
======================================
  Coverage    88.3%   88.3%           
======================================
  Files          12      12           
  Lines        3019    3023    +4     
======================================
+ Hits         2665    2669    +4     
  Misses        354     354           

Files with missing lines	Coverage Δ
mgwr/__init__.py	100.0% <100.0%> (ø)

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