Bump JaCoCo version to snapshot (#466)
Bump JaCoCo version to snapshot (#466)

vijayvani/Lenskit,binweiwu/lenskit,tajinder-txstate/lenskit,amaliujia/lenskit,kluver/lenskit,martinlaz/lenskit,vaibhav345/lenskit,martinlaz/lenskit,chrysalag/lenskit,blankazucenalg/lenskit,chrysalag/lenskit,vaibhav345/lenskit,kluver/lenskit,vijayvani/Lenskit,blankazucenalg/lenskit,kluver/lenskit,kluver/lenskit,vaibhav345/lenskit,vaibhav345/lenskit,tajinder-txstate/lenskit,aglne/lenskit,binweiwu/lenskit,kluver/lenskit,tajinder-txstate/lenskit,aglne/lenskit,amaliujia/lenskit,linjunleo/lenskit,tajinder-txstate/lenskit,linjunleo/lenskit