rabbitmq: dial with timeout

Hardcoded 10 second timeout on no connection instead of waiting
forever.

gitea-events-rabbitmq-publisher/rabbitmq.go

@@ -92,10 +92,13 @@ func ConnectToExchangeForPublish(host, username, password string) {
 		auth = username + ":" + password + "@"
 	}
 
-	connection, err := rabbitmq.DialTLS("amqps://"+auth+host, &tls.Config{
-		ServerName: host,
+	connection, err := rabbitmq.DialConfig("amqps://"+auth+host, rabbitmq.Config{
+		Dial: rabbitmq.DefaultDial(10 * time.Second),
+		TLSClientConfig: &tls.Config{
+			ServerName: host,
+		},
 	})
-	failOnError(err, "Cannot connect to rabbit.opensuse.org")
+	failOnError(err, "Cannot connect to "+host)
 	defer connection.Close()
 
 	ch, err := connection.Channel()