Fixup recover_control_plane with Ansible 2.9 (#5806)

Tests as filters support is removed as of Ansible 2.9
https://docs.ansible.com/ansible/latest/porting_guides/porting_guide_2.5.html#jinja-tests-used-as-filters



Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>