Support for secret API

[wayerr]

Docker provides a secret API: https://docs.docker.com/engine/api/v1.25/#tag/Secret (in api from 1.25)
doc: https://docs.docker.com/engine/swarm/secrets/

In terms of Docker Swarm services, a secret is a blob of data, such as a password, SSH private key, SSL certificate, or another piece of data that should not be transmitted over a network or stored unencrypted in a Dockerfile or in your application’s source code. In Docker 1.13 and higher, you can use Docker secrets to centrally manage this data and securely transmit it to only those containers that need access to it. Secrets are encrypted during transit and at rest in a Docker swarm. A given secret is only accessible to those services which have been granted explicit access to it, and only while those service tasks are running.

We need to provide support in Haven.