Repository updates

[mcflugen]

This will be a base pull request that will update the deltametrics repository. I plan to break this up into smaller pull requests that do things like:

• move static project metadata into a pyproject.toml file
• update for Python 3.13
• add linters

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.32%. Comparing base (d19540b) to head (3c3fd14).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #165      +/-   ##
===========================================
+ Coverage    88.66%   89.32%   +0.66%     
===========================================
  Files            9        9              
  Lines         3617     3617              
===========================================
+ Hits          3207     3231      +24     
+ Misses         410      386      -24     

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