SPRINGFIELD — Gov. Bruce Rauner vetoed a bill that would have set the minimum salary for public school teachers at $40,000 within the next five years.Senate Bill 2892, vetoed by the governor Sunday, would have bumped up pay in increments, starting at $32,076 then going up $2,500 the next two years, then to $40,000 for the 2022-23 academic year.From there, the law would have tied the minimum salary to the Consumer Price Index.Rather than setting a statewide a minimum salary, Rauner said he would support giving raises …