Update PolicyEngine US to 1.596.0#1435

nikhilwoodruff wants to merge 1 commit intomainPolicyEngine/policyengine-household-api:mainfrom

bump-policyengine-us-to-1.596.0PolicyEngine/policyengine-household-api:bump-policyengine-us-to-1.596.0Copy head branch name to clipboard