When a playbook fails, don't succeed in the error_block
When a playbook fails, don't succeed in the error_block

Make sure that a call into the error_block for "rescue" does not
cause the playbook to be considered a success. This uses the
Ansible fail module to indicate failure.

Change-Id: I07d2f06aa74cfe9dd0f7a1c3a64d4e51290bd570
Partial-Story: #2000619

gooddata/zuul,gooddata/zuul,wikimedia/integration-zuul,gooddata/zuul,wikimedia/integration-zuul,wikimedia/integration-zuul,gooddata/zuul,wikimedia/integration-zuul,gooddata/zuul