config: use only test phase for pitest execution at shippable
config: use only test phase for pitest execution at shippable

romani/checkstyle,rnveach/checkstyle,jonmbake/checkstyle,romani/checkstyle,romani/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,romani/checkstyle,rnveach/checkstyle,checkstyle/checkstyle,jonmbake/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,rnveach/checkstyle,romani/checkstyle,checkstyle/checkstyle,jonmbake/checkstyle,romani/checkstyle,rnveach/checkstyle,rnveach/checkstyle,rnveach/checkstyle