Fix: Tests were run twice

[hoh]

The command hatch run testing:cov includes running hatch run testing:test-cov.

This removes the duplication

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 35.25%. Comparing base (0b93f6a) to head (27764d8).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #577   +/-   ##
=======================================
  Coverage   35.25%   35.25%           
=======================================
  Files          53       53           
  Lines        4862     4862           
  Branches      577      577           
=======================================
  Hits         1714     1714           
  Misses       3127     3127           
  Partials       21       21           

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[github-actions]

• Changes in .github/workflows/test-on-droplets-matrix.yml: The PR modifies a GitHub Actions workflow file (.yml). This is likely to be a minor change that doesn't affect the core functionality of the codebase. It might involve removing unused dependencies or updating configuration settings without introducing new bugs.

The overall impact on the codebase and review process should be minimal, as these changes are focused on improving workflows and don't introduce any new features or logic. The PR doesn't require deep understanding of the project architecture or extensive testing, making it suitable for a 'BLUE' category.

Please note that while this PR is likely to have minimal impact, it may still need review by experienced developers due to its complexity and potential risk if not properly reviewed.

[Antonyjin]

LGTM