Update github workflows

[lieryan]

Description

Fixes Github Actions warning of using outdated Nodejs versions:

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-python@v4. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Checklist (delete if not relevant):

• I have updated CHANGELOG.md

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.88%. Comparing base (3ad5861) to head (8e125a9).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #786   +/-   ##
=======================================
  Coverage   94.88%   94.88%           
=======================================
  Files         135      135           
  Lines       26403    26403           
=======================================
  Hits        25053    25053           
  Misses       1350     1350           

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