Stock in Boeing caught an upgrade Tuesday as a Wall Street analyst noted that things are looking up for the commercial aerospace giant and the industry as a whole.Cowen analyst Cai von Rumohr upgraded the shares to Buy from Hold and raised his target for the price to $290 from $240 a share. His belief that “a change is gonna come” underpins his more bullish view.The first change is air traffic. Air travel is picking up after a moribund, pandemic-affected 2020. More than1.9 million people boarded