chore: fix all clippy warnings across workspace

crates/quicproquo-server/src/storage.rs

@@ -320,6 +320,7 @@ pub struct FileBackedStore {
     identity_keys: Mutex<HashMap<String, Vec<u8>>>,
     endpoints: Mutex<HashMap<Vec<u8>, Vec<u8>>>,
     /// Device registry: identity_key -> Vec<(device_id, device_name, registered_at)>
+    #[allow(clippy::type_complexity)]
     devices: Mutex<HashMap<Vec<u8>, Vec<(Vec<u8>, String, u64)>>>,
 }
 
@@ -958,6 +959,7 @@ impl Store for FileBackedStore {
 }
 
 #[cfg(test)]
+#[allow(clippy::unwrap_used)]
 mod tests {
     use super::*;
     use tempfile::TempDir;