* docker_swarm: fix minimal API version (#49691)
* Reduce minimally required docker API version to 1.25, with selective features requiring 1.30.
* Adjust test requirements.
* Forgot some imports.
(cherry picked from commit 495a426039)
* Add changelog for docker swarm minimum api fix
* Check minimal API and docker-py versions for all docker_* tests.
* Improve docker_swarm creation/destruction for tests.
* Fail when conditions aren't met.
* Don't hardcode address for advertise_addr.
(cherry picked from commit 3bb41ccb8e)
