GEODE-7338: Trigger test container builds on bionic-scm, not openjdk-8 (#4333)
GEODE-7338: Trigger test container builds on bionic-scm, not openjdk-8 (#4333)

Consistency is key.

Co-authored-by: Robert Houghton <8ee5723e9b22f5849055c1010807733cae5c117f@pivotal.io>
Co-authored-by: Scott Jewell <89602e2634125fc35c2fe81eca65db21d2a7c9e1@pivotal.io>
masaki-yamakawa/geode,masaki-yamakawa/geode,davinash/geode,jdeppe-pivotal/geode,davinash/geode,smgoller/geode,davebarnes97/geode,jdeppe-pivotal/geode,smgoller/geode,davinash/geode,smgoller/geode,davebarnes97/geode,masaki-yamakawa/geode,davebarnes97/geode,smgoller/geode,davinash/geode,davinash/geode,davebarnes97/geode,jdeppe-pivotal/geode,davebarnes97/geode,masaki-yamakawa/geode,smgoller/geode,davebarnes97/geode,smgoller/geode,davinash/geode,masaki-yamakawa/geode,smgoller/geode,jdeppe-pivotal/geode,davinash/geode,davebarnes97/geode,jdeppe-pivotal/geode,masaki-yamakawa/geode,jdeppe-pivotal/geode,jdeppe-pivotal/geode,masaki-yamakawa/geode