minor tweaks to cassandra tests in ci
minor tweaks to cassandra tests in ci

Jasig/cas,rkorn86/cas,rkorn86/cas,Jasig/cas,rkorn86/cas,fogbeam/cas_mirror,fogbeam/cas_mirror,fogbeam/cas_mirror,apereo/cas,rkorn86/cas,Jasig/cas,Jasig/cas,fogbeam/cas_mirror,apereo/cas,fogbeam/cas_mirror,apereo/cas,fogbeam/cas_mirror,apereo/cas,apereo/cas,apereo/cas,apereo/cas