Notwithstanding section 12-348, in addition to any costs that are awarded by statute, if an agency, department, board or commission of this state, a city, town or county, governmental officer acting in the officer’s official capacity or an association whose membership is primarily composed of governmental entities files a lawsuit against this state, or an agency, department, board or commission of this state, a city, town or county, governmental officer acting in the officer’s official capacity or an association whose membership is primarily composed of governmental entities, the court shall award reasonable attorney fees to the successful party in the action.