By Luc Olinga Young electric vehicle maker is trying to allay fears over its ability to mass-produce. It’s a big relief. Rivian (RIVN) – Get Rivian Automotive Inc. Report, the young manufacturer of electric vehicles, finally has good news for its shareholders and buyers of clean vehicles. The Irvine, Calif.-based group has just confirmed its main target for the year, despite supply chain issues that continue to plague the automotive industry. Rivian claims to be able to manufacture 25,000 cars in 2022. It “believes it is on track to deliver on the 25,000 annual production guidance previously p…