Implement some clippy fixes

packages/router/src/history/memory.rs

@@ -52,7 +52,7 @@ where
     fn default() -> Self {
         Self {
             current: "/".parse().unwrap_or_else(|err| {
-                panic!("index route does not exist:\n{}\n use MemoryHistory::with_initial_path to set a custom path", err)
+                panic!("index route does not exist:\n{err}\n use MemoryHistory::with_initial_path to set a custom path")
             }),
             history: Vec::new(),
             future: Vec::new(),