SPRINGFIELD — A state appellate court ruled last week that it will not block enforcement of the Pritzker administration’s mandate that certain categories of public employees either be vaccinated against COVID-19 or undergo regular testing.The 2-1 ruling by the 4th District Court of Appeals upheld a Sangamon County judge’s decision on April 1 not to issue a temporary restraining order blocking enforcement of the policy.The decision involved three consolidated cases in which public employees are seeking to …