Changes to List active operations

response property items/items/latestMessage list-of-types was widened by adding types null to media type application/json of response 200

response property items/items/partition list-of-types was widened by adding types null to media type application/json of response 200

response property items/items/partitionId list-of-types was widened by adding types null to media type application/json of response 200

response property items/items/sourceDisk list-of-types was widened by adding types null to media type application/json of response 200

response property items/items/targetDisk list-of-types was widened by adding types null to media type application/json of response 200

endpoint added