Don't exit script when c extension detected

[nielstron]

Currently the script simply exits when the C extension is detected due to the set -e setting.

Also adds support for uv

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.86%. Comparing base (95e5b02) to head (c1cdbbd).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #467   +/-   ##
=======================================
  Coverage   89.86%   89.86%           
=======================================
  Files          33       33           
  Lines        5003     5003           
  Branches      759      759           
=======================================
  Hits         4496     4496           
  Misses        327      327           
  Partials      180      180           

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