Remove dev-facing task dependency group

[DanielYang59]

Summary

• Remove dev-facing task dependency group

[codecov]

Codecov Report

❌ Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.27%. Comparing base (a0a2265) to head (10e0aa3).

Files with missing lines	Patch %	Lines
src/monty/io.py	0.00%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #771   +/-   ##
=======================================
  Coverage   85.27%   85.27%           
=======================================
  Files          27       27           
  Lines        1664     1664           
  Branches      315      315           
=======================================
  Hits         1419     1419           
  Misses        186      186           
  Partials       59       59           

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