Fix haproxy config: Add missing X-Forwarded-Port Header for TB API backend

@@ -113,3 +113,4 @@ backend tb-api-backend
   option log-health-checks
   option log-health-checks
   server tbApi1 tb1:8080 check inter 5s resolvers docker_resolver resolve-prefer ipv4
   server tbApi1 tb1:8080 check inter 5s resolvers docker_resolver resolve-prefer ipv4
   server tbApi2 tb2:8080 check inter 5s resolvers docker_resolver resolve-prefer ipv4
   server tbApi2 tb2:8080 check inter 5s resolvers docker_resolver resolve-prefer ipv4
+  http-request set-header X-Forwarded-Port %[dst_port]