Changes to GET /v3/serp/google/dataset_search/tasks_fixed

api operation id SerpGoogleDatasetSearchTasksFixed removed and replaced with GoogleDatasetSearchTasksFixed

api operation id GoogleDatasetSearchTasksFixed removed and replaced with SerpGoogleDatasetSearchTasksFixed

removed the optional property oneOf[#/components/schemas/SerpGoogleDatasetSearchTasksFixedResponseInfo]/allOf[subschema #2]/tasks/items/oneOf[#/components/schemas/SerpGoogleDatasetSearchTasksFixedTaskInfo]/allOf[subschema #2]/result/items/oneOf[#/components/schemas/SerpGoogleDatasetSearchTasksFixedResultInfo]/date_fixed from the response with the 200 status

added the optional property oneOf[#/components/schemas/SerpGoogleDatasetSearchTasksFixedResponseInfo]/allOf[subschema #2]/tasks/items/oneOf[#/components/schemas/SerpGoogleDatasetSearchTasksFixedTaskInfo]/allOf[subschema #2]/result/items/oneOf[#/components/schemas/SerpGoogleDatasetSearchTasksFixedResultInfo]/date_posted to the response with the 200 status