GEODE-5476: Fixes pr-pipeline docker image prefix.
GEODE-5476: Fixes pr-pipeline docker image prefix.

davinash/geode,PurelyApplied/geode,jdeppe-pivotal/geode,smgoller/geode,jdeppe-pivotal/geode,masaki-yamakawa/geode,davinash/geode,smgoller/geode,davebarnes97/geode,davinash/geode,masaki-yamakawa/geode,PurelyApplied/geode,smgoller/geode,pdxrunner/geode,jdeppe-pivotal/geode,masaki-yamakawa/geode,PurelyApplied/geode,davebarnes97/geode,PurelyApplied/geode,masaki-yamakawa/geode,pdxrunner/geode,pdxrunner/geode,smgoller/geode,smgoller/geode,PurelyApplied/geode,jdeppe-pivotal/geode,deepakddixit/incubator-geode,PurelyApplied/geode,smgoller/geode,davinash/geode,masaki-yamakawa/geode,smgoller/geode,pdxrunner/geode,jdeppe-pivotal/geode,deepakddixit/incubator-geode,deepakddixit/incubator-geode,davinash/geode,deepakddixit/incubator-geode,davebarnes97/geode,masaki-yamakawa/geode,PurelyApplied/geode,pdxrunner/geode,davebarnes97/geode,pdxrunner/geode,deepakddixit/incubator-geode,davebarnes97/geode,davebarnes97/geode,davinash/geode,pdxrunner/geode,masaki-yamakawa/geode,jdeppe-pivotal/geode,davinash/geode,davebarnes97/geode,deepakddixit/incubator-geode,jdeppe-pivotal/geode,deepakddixit/incubator-geode