Macworld The next major cycle of Mac upgrades revolves around the M4 chip and it’s starting this week. Instead of an event, Apple teased “an exciting week” of releases starting Monday, with several new M4 Macs making their debut. And if the rumors are correct, this is just the start, with every Mac in Apple’s lineup getting an update within the next few months. For the first time since Apple silicon arrived, every model will soon be running the same chip. Here’s what’s coming this week—and beyond. Coming this weekM4 iMacFoundry Release date: Reports indicate that Apple will refresh the M4 iMac…