feat: use ipv6

Author: ferrandiaz

src/shippingservice/src/main.rs

@@ -29,7 +29,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     info!("OTel pipeline created");
     let port = env::var("SHIPPING_SERVICE_PORT").expect("$SHIPPING_SERVICE_PORT is not set");
-    let addr = format!("0.0.0.0:{}", port).parse()?;
+    let addr = format!("[::]:{}", port).parse()?;
     info!("listening on {}", addr);
     let shipper = ShippingServer::default();