[$] An outdated Python for openSUSE Leap

Enterprise distributions are famous for maintaining the same versions of
software throughout their, normally five-year-plus, support windows. But
many of the projects those distributions are based on have far shorter
support periods; part of what the enterprise distributions sell is patching
over those mismatches. But openSUSE Leap is not exactly an
enterprise distribution, so some users are chafing under the restrictions
that come from Leap being based on SUSE Enterprise Linux (SLE). In
particular, shipping Python 3.6, which reached its end of life at the
end of 2021, is seen as problematic for the upcoming Leap 15.4 release.