feat(transcoder): update the api

#### transcoder:v1beta1

The following keys were added:
- schemas.Job.properties.ttlAfterCompletionDays.format
- schemas.Job.properties.ttlAfterCompletionDays.type
- schemas.OperationMetadata.id
- schemas.OperationMetadata.properties.apiVersion.type
- schemas.OperationMetadata.properties.cancelRequested.type
- schemas.OperationMetadata.properties.createTime.format
- schemas.OperationMetadata.properties.createTime.type
- schemas.OperationMetadata.properties.endTime.format
- schemas.OperationMetadata.properties.endTime.type
- schemas.OperationMetadata.properties.statusDetail.type
- schemas.OperationMetadata.properties.target.type
- schemas.OperationMetadata.properties.verb.type
- schemas.OperationMetadata.type

Author: yoshi-automation