chore: use uv as the dependencies installer

[FrenchGithubUser]

but keep using hatch for everything else since we get most of uv's benefits on the dependencies installation step and its other benefits are not worth enough for the change

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.61%. Comparing base (2ae5054) to head (fa866f6).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #135   +/-   ##
=======================================
  Coverage   95.61%   95.61%           
=======================================
  Files           7        7           
  Lines         798      798           
  Branches      118      118           
=======================================
  Hits          763      763           
  Misses         22       22           
  Partials       13       13           

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