Migrate away from setuptools_scm_git_archive

[tjni]

I'm packaging this in nixpkgs and would like to avoid a dependency on setuptools_scm_git_archive. I followed the migration instructions and picked >= 7.0.5 because I saw that there was a bug reported in pypa/setuptools_scm#745 that was fixed in that version.

I do not know how to test this so help here is appreciated.

[abhinavsingh]

@tjni We may need to look a little deeper to remove this dependency. At least, as of now, our code tries to import proxy.common._scm_version and absence of this file will lead to errors. In fact, this integration was a contribution by @webknjaz , adding him for more insights here.

[webknjaz]

The change is correct. The archival file should provide more metadata that newer versions of setuptools-scm use. As long as you don't need to support ancient Python versions that setuptools-scm no longer supports, this is good to go.

[abhinavsingh]

@webknjaz Thank you for your advice on this :). @tjni Back then workflows were broken and I had little bandwidth to invest into it. Today I have updated the develop branch so that workflows are stable again. Updated your branch, will try and merge once after workflow passes. Thank you folks.