pipx.run entry-points should be setuptools-scm

[paugier]

The package is now called setuptools-scm.

- are more common than _ for command names (at least on Linux).

I guess it make more sense to write pipx run setuptools-scm.

Note: currently (before next release), this works

pipx run --spec setuptools-scm@https://github.com/pypa/setuptools-scm/archive/refs/heads/main.zip setuptools_scm

[paugier]

Note for myself: this works

pipx run -v --spec setuptools-scm@git+https://github.com/paugier/setuptools_scm.git@fix-pipx-command-name setuptools-scm

[RonnyPfannschmidt]

Based in normalization I suspect we will need the old name

I think pipx needs to support normalization flips before we can drop it