Update workflows and requirements

[mavaylon1]

• Updated optional dependency groups in pyproject.toml and GitHub Actions workflows
• Cleaned up tox.ini
• Removed unnecessary requirements files and updated documentation
• Added dependabot testing

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.73%. Comparing base (3d08b60) to head (81db7ef).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #239   +/-   ##
=======================================
  Coverage   86.73%   86.73%           
=======================================
  Files           5        5           
  Lines        1206     1206           
  Branches      229      229           
=======================================
  Hits         1046     1046           
  Misses        102      102           
  Partials       58       58           

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