testing/py3-scs: upgrade to 3.2.3

https://github.com/cvxgrp/scs/releases/tag/3.2.3

the changelog had a note about tests working again, but.. the maintainer removed that note in the meantime

added 15 commits

• 5a68c036...6686507c - 14 commits from branch alpine:master
• 95eab24d - testing/py3-scs: upgrade to 3.2.3

Compare with previous version

merged