I think we should rip out the "OLD_SLE" stuff and conditions. And we also want to add an "Obsoletes: python3-gcemetadata".

Then in SLE we will create the new source package for 15 SP4 and later as "python-gcemetadata" and we'll build with "%{?sle15_python_module_pythons}" to get the Python 3.11 build. We'll leave the existing source package in SLE, "python3-gcemetadata" untouched, and we'll set the repo metadata for it's corresponding binary package to "superseded".

Then the new spec file is unencumbered by the old stuff that we do not want to support anymore and for Factory we'll create a delete request for python3-gcemetada and add python-gcemetata and all will work during upgrade. We'll adjust the cloud image build accordingly.

@rjschwei: review reminder