Disallow privilege escalation in rabbitmq server container

This PS is to address security best practices in rabbitmq
server containers by disabling allowPrivilegeEscalation flag

Change-Id: I4de2ee4320efaa9569312016f4cca61c1f7636b2

rabbitmq/Chart.yaml

@@ -15,6 +15,6 @@ apiVersion: v1
 appVersion: v3.7.26
 description: OpenStack-Helm RabbitMQ
 name: rabbitmq
-version: 0.1.5
+version: 0.1.6
 home: https://github.com/rabbitmq/rabbitmq-server
 ...

rabbitmq/values.yaml

@@ -84,6 +84,7 @@ pod:
           runAsUser: 0
           readOnlyRootFilesystem: true
         rabbitmq:
+          allowPrivilegeEscalation: false
           runAsUser: 999
           readOnlyRootFilesystem: false
     cluster_wait:

releasenotes/notes/rabbitmq.yaml

@@ -1,4 +1,9 @@
 ---
 rabbitmq:
   - 0.1.0 Initial Chart
+  - 0.1.1 Change helm-toolkit dependency version to ">= 0.1.0"
+  - 0.1.2 changes rmq-exporter secret src
+  - 0.1.4 Add configurable RABBIT_TIMEOUT parameter
+  - 0.1.5 Update Rabbitmq exporter version
+  - 0.1.6 Disallow privilege escalation in rabbitmq server container
 ...