U.S. stock index futures edged higher on Friday as Johnson & Johnson and technology stocks led gains at the end of a week scarred by deepening concerns over prolonged inflation. All the major U.S. indexes were set for a more than 1 percent weekly drop, their first since the week ended Oct. 1, as hot inflation numbers sapped investor sentiment and halted an earnings-driven streak of record closing highs. Johnson & Johnson jumped 4.7 percent in premarket trading after the drugmaker said it is planning to break up into two companies focused on its consumer health division and the large pharmaceuticals unit. Shares of mega-cap technology and communication stocks including Google-owner Alphabet Inc., Tesla Inc., Microsoft Corp., Meta Platforms Inc., formerly known as Facebook, Apple Inc., and Amazon.com also inched up. Tesla’s top boss Elon Musk sold more shares of the electric car maker, regulatory filings showed, after offloading about …