Fix build CI job

[atugushev]

Forgot to install setuptools-scm.

Contributor checklist

• Provided the tests for the changes.
• Assure PR title is short, clear, and good to be included in the user-oriented changelog

Maintainer checklist

• Assure one of these labels is present: backwards incompatible, feature, enhancement, deprecation, bug, dependency, docs or skip-changelog as they determine changelog listing.
• Assign the PR to an existing or new milestone for the target version (following Semantic Versioning).

[atugushev]

Perhaps there is no need in printing version by setuptools-scm at all. After building sdist and wheel build would print a version of builded packages:

$ python -m build
...
Successfully built pip-tools-6.11.0.tar.gz and pip_tools-6.11.0-py3-none-any.whl

What do you think?

[ssbarnea]

@atugushev Yeah, I would know toi look for archive versions to see version. BTW, if you spot an issue with versioning let me know, I know few tuning tricks if needed.