fix: ansible.posix.synchronize in docker container

[ziermmar]

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Adds rsync to enable using ansible.posix.synchronize module Fixes ansible-semaphore/semaphore#1564

[Zen3515]

Can we have this merge?

[tboerger]

Within the dedicated runner image rsync is already installed, but it'S right that this should also be part of deployment/docker/dev/Dockerfile and deployment/docker/prod/Dockerfile. Potentially maybe even part of deployment/docker/ci/Dockerfile.

[tboerger]

With the latest develop tag and soonish the next release this issue have been resolved.