config: bump equalsverifier version to 2.3.3
config: bump equalsverifier version to 2.3.3

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