fix lints

backend/tests/healthcheck.rs

@@ -3,7 +3,7 @@ use std::{sync::LazyLock, time::Duration};
 use http::StatusCode;
 use reqwest::Client;
 
-static client: LazyLock<Client> = LazyLock::new(|| {
+static CLIENT: LazyLock<Client> = LazyLock::new(|| {
     Client::builder()
         .timeout(Duration::from_secs(10))
         .connect_timeout(Duration::from_secs(5))
@@ -13,7 +13,7 @@ static client: LazyLock<Client> = LazyLock::new(|| {
 
 #[tokio::test]
 async fn test_healthcheck_returns_healthy() {
-    let resp = client
+    let resp = CLIENT
         .get("http://localhost:7001/healthcheck")
         .send()
         .await