Run OSG tests against 8.9
Run OSG tests against 8.9

This is required for Python 3 audit_payloads.py since Python 3 support
in 8.8 is incomplete

matyasselmeci/htcondor-ce,matyasselmeci/htcondor-ce,brianhlin/htcondor-ce,brianhlin/htcondor-ce,matyasselmeci/htcondor-ce,brianhlin/htcondor-ce