Missing type `CreatedAt` from `listVolumes()`

[pablomendezroyo]

The return type from the function listVolumes() should reflect the type CreatedAt.

• Src code: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/3c78f0fd3c1bd7c16bde2b58e3dccadfccbdb0f1/types/dockerode/index.d.ts#L497
• Docker volumes get API endpoint https://docs.docker.com/engine/api/v1.46/#tag/Volume/operation/VolumeList