Replace openstack_proxy_address with cluster_public_host

In addition to template changes https://gerrit.mcp.mirantis.com/29621

Change-Id: I1d469d46e4931dec809c3f74ebbb3a98dfdc06a1
Closes-bug: PROD-24645 (PROD-25495)
(cherry picked from commit 983e92f6dd43b01c4c7e96afa60315cd9a672f43)
diff --git a/.releasenotes/notes/add-jenkins-and-gerrit-nginx-proxy-support-272f290d7c92480a.yaml b/.releasenotes/notes/add-jenkins-and-gerrit-nginx-proxy-support-272f290d7c92480a.yaml
index f15497f..9ab92ef 100644
--- a/.releasenotes/notes/add-jenkins-and-gerrit-nginx-proxy-support-272f290d7c92480a.yaml
+++ b/.releasenotes/notes/add-jenkins-and-gerrit-nginx-proxy-support-272f290d7c92480a.yaml
@@ -23,7 +23,7 @@
 
           parameters:
             _param:
-              nginx_proxy_gerrit_server_site_host: ${_param:openstack_proxy_address}
+              nginx_proxy_gerrit_server_site_host: ${_param:cluster_public_host}
               nginx_proxy_gerrit_server_site_port: 8080
               gerrit_http_listen_url: proxy-https://*:8080/
               gerrit_public_host: https://${_param:nginx_proxy_gerrit_server_site_host}:${_param:nginx_proxy_gerrit_server_site_port}