Changes to List Campaigns

added BinaryFile subschema #1 to the data/items/letter/allOf[#/components/schemas/CampaignLetterFields]/attachedPDF/allOf[#/components/schemas/AttachedPDF]/file response property oneOf list for the response status 200

removed subschema #1 subschema #2 from the data/items/letter/allOf[#/components/schemas/CampaignLetterFields]/attachedPDF/allOf[#/components/schemas/AttachedPDF]/file response property anyOf list for the response status 200

added the optional property data/items/letter/allOf[#/components/schemas/CampaignLetterFields]/paper to the response with the 200 status

added PostcardPremiumPaperID to the data/items/postcard/allOf[#/components/schemas/CampaignPostcardFields]/paper response property allOf list for the response status 200

removed PremiumPaperID from the data/items/postcard/allOf[#/components/schemas/CampaignPostcardFields]/paper response property allOf list for the response status 200

removed the optional property data/items/chequeProfile from the response with the 200 status

removed the optional property data/items/letterProfile from the response with the 200 status

removed the optional property data/items/postcardProfile from the response with the 200 status

removed the optional property data/items/selfMailerProfile from the response with the 200 status

added the new internal_server_error enum value to the error/type response property for the response status 500

added the new rate_limit_exceeded_error enum value to the error/type response property for the response status 429

added the new validation_error enum value to the error/type response property for the response status 400

added subschema #1 subschema #2 to the response body anyOf list for the response status 401

removed subschema #1 subschema #2 from the response body anyOf list for the response status 401

added the optional property data/items/cheque to the response with the 200 status

added the optional property data/items/letter to the response with the 200 status

added the optional property data/items/postcard to the response with the 200 status

added the optional property data/items/selfMailer to the response with the 200 status

added the optional property data/items/snapPack to the response with the 200 status