[Dovecot, Helper] Add HAProxy listener for 4190/tcp sieve

data/conf/dovecot/dovecot.conf

@@ -336,6 +336,10 @@ service managesieve-login {
   inet_listener sieve {
     port = 4190
   }
+  inet_listener sieve_haproxy {
+    port = 14190
+    haproxy = yes
+  }
   service_count = 1
   process_min_avail = 2
   vsz_limit = 1G

helper-scripts/docker-compose.override.yml.d/HAPROXY/docker-compose.override.yml

@@ -11,6 +11,7 @@ services:
         - "${IMAPS_PORT_HAPROXY:-127.0.0.1:10993}:10993"
         - "${POP_PORT_HAPROXY:-127.0.0.1:10110}:10110"
         - "${POPS_PORT_HAPROXY:-127.0.0.1:10995}:10995"
+        - "${SIEVE_PORT_HAPROXY:-127.0.0.1:14190}:14190"
 
     postfix-mailcow:
       ports: