when switching to setuptools_scm version 7 we can also drop the dependency on setuptools_scm_git_archive, as the functionality is now provided in setuptools_scm` directly.

for the archive functionality it also has a different .git_archival.txt template than what we currently use, we should probably update that: https://github.com/pypa/setuptools_scm#builtin-mechanisms-for-obtaining-version-numbers