Fixed clippy warnings for Rust 1.87.0

Author: spirali

crates/hyperqueue/src/stream/reader/outputlog.rs

@@ -124,7 +124,7 @@ impl OutputLog {
                     }
                 };
                 if let Some(uid) = server_uid {
-                    if uid != header.server_uid.as_str() {
+                    if uid != header.server_uid {
                         log::debug!("{} ignored because different server uid", path.display());
                         continue;
                     }

crates/hyperqueue/src/worker/streamer.rs

@@ -25,7 +25,7 @@ pub const STREAM_FILE_SUFFIX: &str = "hqs";
 
 #[derive(Serialize, Deserialize, Debug)]
 pub(crate) struct StreamFileHeader<'a> {
-    pub server_uid: Cow<'a, String>,
+    pub server_uid: Cow<'a, str>,
     pub worker_id: WorkerId,
 }