[JOSS REVIEW PR] Harmonize depenedncies from environment.yml and pyproject.toml

[valeriupredoi]

Description

Closes #172

An excellent call from @Zeitsperre about our deps. This change is sticking to norms, and does keep the core deps to just Python and Numpy for the conda package.

Before you get started

• ☝ Create an issue to discuss what you are going to do

Checklist

• This pull request has a descriptive title and labels
• This pull request has a minimal description (most was discussed in the issue, but a two-liner description is still desirable)
• Any changed dependencies have been added or removed correctly (if need be)
• All tests pass

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.83%. Comparing base (628f227) to head (fbc9401).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #174   +/-   ##
=======================================
  Coverage   76.83%   76.83%           
=======================================
  Files          15       15           
  Lines        2936     2936           
  Branches      467      467           
=======================================
  Hits         2256     2256           
  Misses        558      558           
  Partials      122      122           

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