Use podman when deploying

[fao89]

Deploy fails because it tries docker push when it should use podman

TASK [Check for podman] ********************************************************
changed: [localhost] => changed=true 
  cmd:
  - which
  - podman
  delta: '0:00:00.002599'
  end: '2021-01-13 13:16:52.542464'
  rc: 0
  start: '2021-01-13 13:16:52.539865'
  stderr: ''
  stderr_lines: <omitted>
  stdout: /usr/bin/podman
  stdout_lines: <omitted>

TASK [set_fact] ****************************************************************
ok: [localhost] => changed=false 
  ansible_facts:
    container_cli: podman

https://github.com/pulp/pulp-operator/runs/1695146929?check_suite_focus=true#step:8:4084

[pulpbot]

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