tests: set no_log_on_ceph_key_tasks=false

In order to not have to always reproduce it when a failure shows up in the CI
having the failure logged can make us save some time.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 89ddc19)
(cherry picked from commit 6ef470e)

Author: guits

tox.ini

@@ -339,6 +339,7 @@ commands=
   ansible-playbook -vv -i {changedir}/{env:INVENTORY} {toxinidir}/tests/functional/setup.yml
 
   ansible-playbook -vv -i {changedir}/{env:INVENTORY} {toxinidir}/{env:PLAYBOOK:site.yml.sample} --extra-vars "\
+      no_log_on_ceph_key_tasks=false \
       deploy_secondary_zones=False \
       ceph_docker_registry_auth=True \
       ceph_docker_registry_username={env:DOCKER_HUB_USERNAME} \