LONDON — A group of artists set to compete in this year’s Eurovision Song Contest said Friday they “do not feel comfortable being silent” in light of the ongoing Israeli military offensive in the Gaza Strip, but stopped short of heeding growing calls for a boycott of the music competition over Israel’s participation. The joint statement — from the entrants who will represent Denmark, Finland, Ireland, Lithuania, Norway, Portugal, San Marino, Switzerland and the United Kingdom — comes a little more than a month before this year’s edition of the pop extravaganza in May. The competition is being held in...