Add conda config; update minver for python; update dep for poppy

[tepickering]

This PR adds config for building conda environment with all dependencies installed via conda-forge. This will make the operational environment easier to maintain.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.00%. Comparing base (b466034) to head (cad91f3).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #57   +/-   ##
=======================================
  Coverage   85.00%   85.00%           
=======================================
  Files          10       10           
  Lines        2327     2328    +1     
=======================================
+ Hits         1978     1979    +1     
  Misses        349      349           

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