SPRINGFIELD — Employees of Hospital Sisters Health System Inc. who are signed up for the company’s retirement plan urged an Illinois federal judge to approve a $62.5 million settlement over their claims the health system improperly used the federal Employee Retirement Income Security Act’s church exemption to shortchange them by $514 million.The settlement agreement would require the nonprofit healthcare system to donate $62.5 million to the retirement plan from 2019 to 2022. The hospitals would still be …