The `install_base` action is not idempotent

Summary

The install_base action is not idempotent - it always restarts docker service.

Steps to reproduce

test.yml:

---
- name: "install docker"
  hosts: localhost
  roles:
    - role: "docker"
      action: "install_base"

ansible-playbook -i inventory test.yml
ansible-playbook -i inventory test.yml

Expected behavior

Docker is installed on the first run, second one change nothing.

Actual behavior

Docker is installed and then restarted.

Relevant logs and/or screenshots

Nothing here.

Possible fixes

I think that configuration should be checked for changes and docker should be restarted only if installed/changed.