fix standby port number

inventories/example-ha/group_vars/all.yml

@@ -15,7 +15,7 @@ hap_config_listen:
       server pg2 192.168.122.2:5432 maxconn 500 check port 8543 backup
   - name: pgsql-standby
     content: |
-      bind localhost:54321
+      bind localhost:54322
       default-server inter 2s fall 3 rise 2 on-marked-down shutdown-sessions
       option tcp-check
       tcp-check expect rstring (primary|standby)