Changes to List approval requests

removed the enum value APPROVED from the query request parameter decision

removed the enum value DENIED from the query request parameter decision

removed the enum value EXPIRED from the query request parameter decision

removed the enum value PENDING from the query request parameter decision

removed the optional property items/decidedAt from the response with the 200 status

removed the optional property items/decidedBy from the response with the 200 status

removed the optional property items/decisionNote from the response with the 200 status

removed the optional property items/evidenceRefs from the response with the 200 status

removed the optional property items/operatorId from the response with the 200 status

removed the optional property items/policyEvaluations from the response with the 200 status

endpoint added