chore: nix flake update

required running:
`cargo fix --allow-dirty --allow-staged`
`cargo clippy --fix --allow-dirty -- -D warnings`
to fix problems

and then manually fixing some too

1 files changed, 1 insertions, 1 deletions

diff --git a/test_utils/src/relay.rs b/test_utils/src/relay.rs
index e820651..14778d9 100644
--- a/test_utils/src/relay.rs
+++ b/test_utils/src/relay.rs
@@ -186,7 +186,7 @@ impl<'a> Relay<'a> {
 
 pub fn shutdown_relay(port: u64) -> Result<()> {
     let mut counter = 0;
-    while let Ok((mut socket, _)) = tungstenite::connect(format!("ws://localhost:{}", port)) {
+    while let Ok((mut socket, _)) = tungstenite::connect(format!("ws://localhost:{port}")) {
         counter += 1;
         if counter == 1 {
             socket.write(tungstenite::Message::text("shut me down"))?;