(Reuters) – Investment bank Lazard Ltd reported a 13% jump in quarterly profit that beat Wall Street estimates on Thursday, helped by high advisory fees as a flurry of mergers and acquisitions closed out a record year for dealmaking. Global mergers and acquisitions, one of Lazard’s main revenue drivers, smashed all-time records in 2021 by topping $5 trillion for the first time, buoyed by an abundance in capital and sky-high valuations. Technology and healthcare companies, in particular, raised capital and forged deals at a frenetic pace, taking advantage of booming equity markets and helping i…