Changes to List a task's messages

added the optional property messages/items/parts/items/anyOf[subschema #3]/versionId to the response with the 200 status

response property nextCursor list-of-types was widened by adding types array to media type application/json of response 200

added subschema #3 subschema #4 subschema #5 subschema #7 to the messages/items/parts/items response property anyOf list for the response status 200

removed subschema #3 subschema #4 subschema #5 subschema #7 from the messages/items/parts/items response property anyOf list for the response status 200

the messages/items/createdAt response's property pattern was changed from ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ to ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$ for the status 200