[coturn] Use pasta

projects/coturn/compose.yaml.mako

@@ -2,6 +2,7 @@ services:
   coturn:
     container_name: coturn
     image: docker.io/coturn/coturn:4-alpine
+    network_mode: pasta:-a,${env['pasta']['coturn']['ipv4']},-a,${env['pasta']['coturn']['ipv6']}
     restart: always
     user: ${env['users']['coturn']}:${env['users']['coturn']}
     ports:
@@ -16,7 +17,3 @@ services:
       - ./turnserver.conf.rendered:/etc/coturn/turnserver.conf:ro
       - ${env['certs']['coturn']['cert']}:/etc/coturn/cert.pem:ro
       - ${env['certs']['coturn']['pkey']}:/etc/coturn/pkey.pem:ro
-
-networks:
-  default:
-    enable_ipv6: true