Bump version from 0.2.3 to 0.2.4 to deploy to TestPyPi

[alancmliu]

• fix Update package version for deployment purpose. #135
• description of feature/fix
• tests added/passed
• add an entry to the changelog

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.15%. Comparing base (81d1f68) to head (3be7943).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #136   +/-   ##
=======================================
  Coverage   96.15%   96.15%           
=======================================
  Files          10       10           
  Lines         676      676           
  Branches       56       56           
=======================================
  Hits          650      650           
  Misses         13       13           
  Partials       13       13           

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