pom.xml: fix parent pom
pom.xml: fix parent pom

Signed-off-by: Pierre-Alexandre Meyer <ff019a5748a52b5641624af88a54a2f0e46a9fb5@ning.com>

killbill/killbill-meter-plugin,killbill/killbill-meter-plugin,trifonnt/killbill-meter-plugin,trifonnt/killbill-meter-plugin