Upgrade RabbitMQ to 4.2.6

https://github.com/rabbitmq/rabbitmq-server/releases

Change-Id: I28a2938194d1a2604eea22d575cd15b3c18f1e91
Signed-off-by: Ivan Anfimov <lazekteam@gmail.com>

defaults/main.yml

@@ -21,7 +21,7 @@ cache_timeout: 600
 rabbitmq_package_state: "{{ package_state | default('latest') }}"
 
 # Defined versions of RabbitMQ and Erlang
-rabbitmq_package_version: "4.2.5-1"
+rabbitmq_package_version: "4.2.6-1"
 rabbitmq_erlang_package_version: "27.3.*-1"
 
 # Inventory group containing the hosts for the cluster

releasenotes/notes/upgrade_rabbitmq_4_2-d63718f4a329366b.yaml

@@ -1,7 +1,7 @@
 ---
 features:
   - |
-    RabbitMQ was upgraded to version 4.2.5.
+    RabbitMQ was upgraded to version 4.2.6.
 upgrade:
   - |
     During upgrade of RabbitMQ to 4.2 series, a migration from mnesia to