pom.xml: 0.23.x for 0.18.x
pom.xml: 0.23.x for 0.18.x

Signed-off-by: Pierre-Alexandre Meyer <ff019a5748a52b5641624af88a54a2f0e46a9fb5@mouraf.org>

killbill/killbill-plugin-api,killbill/killbill-plugin-api