SPRINGFIELD — Gov. Bruce Rauner’s administration announced Thursday it would increase spending on road and bridge repairs by nearly $3 billion during the next six years, but the state’s transportation secretary said the state still won’t get ahead of deteriorating roads.The Illinois Department of Transportation released a plan it says spends $11.2 billion through 2022 on roads and bridges, a $2.8 billion increase from what was planned at this time last year.Despite a rosier picture than anticipated, …