[PROD-30162] Change Keycloak Haproxy backend port

Change Keycloack Haproxy backend port to 8086 since it
conflicts with Gerrit Haproxy backend

Change-Id: I52e1815cfc9da176b76ef3223e7154e0b2577b8e
diff --git a/haproxy/proxy/listen/keycloak.yml b/haproxy/proxy/listen/keycloak.yml
index 89a9670..73697a3 100644
--- a/haproxy/proxy/listen/keycloak.yml
+++ b/haproxy/proxy/listen/keycloak.yml
@@ -1,7 +1,7 @@
 parameters:
   _param:
     haproxy_keycloak_bind_host: ${_param:haproxy_bind_address}
-    haproxy_keycloak_bind_port: 8080
+    haproxy_keycloak_bind_port: 8086
     haproxy_keycloak_exposed_port: 18086
     haproxy_keycloak_ssl:
       enabled: false