SPRINGFIELD — Gov. J.B. Pritzker signed a bill into law last week barring local governments from establishing “right-to-work” zones.Right-to-work laws allow employees to choose whether or not to join a union or pay dues at unionized workplaces, essentially making those businesses “open shops.”Based on the policies passed in Republican-controlled states, some local governments in Illinois passed right-to-work ordinances to regulate unionized private-sector companies within their boundaries …