[FEATURE] Docker Swarm CSI support

[s4ke]

What feature you'd like to add:

Recently published Docker 23.0.0 added CSI support for Swarm mode so it is possible to use CSI drivers with it but they have to be packaged as Docker plugin.

Docker Swarm users would gain the ability to use ceph in Docker Swarm via CSI instead of relying on bind mounting volumes.

Why is this feature needed:

While juicefs currently supports Docker Swarm with a specific Docker driver, adding support for Swarm in the CSI driver would standardize the interfaces and Swarm users would benefit from further development of this project.

Additional context

You can find more information here. Hetzner CSI has already merged a PR that adds support