Enable and fix some more clippy lints (#7426)

One can never have too many lints

examples/puffin_profiler/src/main.rs

@@ -177,5 +177,5 @@ fn start_puffin_server() {
         Err(err) => {
             log::error!("Failed to start puffin server: {err}");
         }
-    };
+    }
 }