Except when required by federal law, an agreement between the federal government and the state, or because of a substantial risk to public health or safety, no state entity shall deny a professional license because of an individual’s: (1) Employment or affiliation with a cannabis establishment; (2) possession or use of cannabis that is legal under section 21a-279a, or chapter 420f; or (3) cannabis use or possession conviction for an amount less than four ounces.