DOC/MINOR: annotations: deprecate cookie-persistence on Ingress

Add a warning tip on the cookie-persistence annotation announcing that
its use on Ingress objects is deprecated and will be removed in a future
release, advising to set it at the Service or ConfigMap level instead.

Regenerate annotations.md from doc.yaml accordingly.

Author: imatmati

documentation/annotations.md

@@ -692,6 +692,8 @@ backend-config-snippet: |
 
   Available on:  `configmap`  `ingress`  `service`
 
+  :information_source: :warning: Using `cookie-persistence` on Ingress objects is deprecated and will be removed in a future release. Use this annotation at the Service or ConfigMap level instead.
+
   :information_source: This will insert the following cookie configuration in the corresponding backend `cookie <cookie-name> insert indirect nocache dynamic` with `<cookie-name>` the value of this annotation.
 
 Possible values:

documentation/doc.yaml

@@ -917,6 +917,7 @@ annotations:
         to before.
       - Dynamic cookies are used by default via a [dynamic-cookie-key](https://cbonte.github.io/haproxy-dconv/2.4/configuration.html#4.2-dynamic-cookie-key) in order to support sticky sessions across multiple Ingress Controller instances/replicas.
     tip:
+      - ":warning: Using `cookie-persistence` on Ingress objects is deprecated and will be removed in a future release. Use this annotation at the Service or ConfigMap level instead."
       - This will insert the following cookie configuration in the corresponding backend `cookie <cookie-name> insert indirect nocache dynamic` with `<cookie-name>` the value of this annotation.
     values:
       - A name for the cookie