We limit to 2.14.2 due to a regression in ansible-core [1] that breaks
conditional include_task loops in handlers. This is used for controlled
restarts of MariaDB and RabbitMQ.

[1]: https://github.com/ansible/ansible/commit/65366f663de7d044f42ae6dd53368fd4c1f88b35



Change-Id: I57425680a4cdbf0daeb9b2cc35920f1b933aa4a8
Co-Authored-By: Michal Nasiadka <michal@stackhpc.com>