travis: skip tests during deploy phase
travis: skip tests during deploy phase

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

rocketlawyer/killbill-oss-parent,aeq/killbill-oss-parent,killbill/killbill-oss-parent,andrenpaes/killbill-oss-parent,maguero/killbill-oss-parent