Add support for uv package manager

[p3r-l6m]

Please, add support for uv packager manager.

Today the install.sh only looks for pipx. If uv is install i would like it to use uv instead of pipx.

Syntax:

$ uv tool install --help
Install commands provided by a Python package

Usage: uv tool install [OPTIONS] <PACKAGE>

Arguments:
  <PACKAGE>  The package to install commands from
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[ChristianLempa]

@p3r-l6m thanks, fantastic! I think the best plan going forward is to use PyPI and Homebrew, and remove the install.sh script in the future. So you could use pipx, uv, or homebrew to install and update the boilerplates. What do you think?