disable keep-alive: workaround for timeouting requests after auth error

src/main.rs

@@ -1,4 +1,5 @@
 use crate::config::Config;
+use actix_web::http::KeepAlive;
 use actix_web::HttpServer;
 use anyhow::Result;
 use app::make_app;
@@ -56,6 +57,8 @@ async fn main() -> Result<()> {
 
     HttpServer::new(move || make_app(cal_store.clone(), auth.clone()))
         .bind((config.http.host, config.http.port))?
+        // This is an unfortunate workaround for https://github.com/actix/actix-web/issues/1805
+        .keep_alive(KeepAlive::Disabled)
         .run()
         .await?;