Investors have long prized gold as a hedge against inflation and economic uncertainty, but one of the world’s fastest-growing industries is now fueling a new source of demand for the precious metal.The buildout of artificial intelligence (AI) is driving investment in advanced semiconductors, servers and the sprawling data centers needed to power the technology. That expansion also requires a range of materials used in high-performance electronics, including gold.And the AI boom is creating a growing need at a time when gold is already historically expensive. Despite those high prices, tech com...