Fix sockets causing actix hangs (#3089)

* Fix sockets causing actix hangs

* Fix fmt issues

* Retry failed S3 uploads

* Ignore launcher socket from sentry

apps/labrinth/src/main.rs

@@ -92,6 +92,7 @@ async fn main() -> std::io::Result<()> {
 
     let prometheus = PrometheusMetricsBuilder::new("labrinth")
         .endpoint("/metrics")
+        .exclude("/_internal/launcher_socket")
         .build()
         .expect("Failed to create prometheus metrics middleware");