chore: update data-router example to pre.9 and fix changelog typo

Author: brophdawg11

.changeset/light-months-argue.md

@@ -14,7 +14,7 @@ Returning a `deferred` from a `loader` allows you to separate _critical_ loader
 function loader() {
   return deferred({
     critical: await getCriticalData(),
-    lazy1: getLazyData(),
+    lazy: getLazyData(),
   });
 };
 

examples/data-router/package-lock.json

@@ -9,7 +9,7 @@
   "dependencies": {
     "react": "18.1.0",
     "react-dom": "18.1.0",
-    "react-router-dom": "^6.4.0-pre.8"
+    "react-router-dom": "^6.4.0-pre.9"
   },
   "devDependencies": {
     "@rollup/plugin-replace": "4.0.0",

examples/data-router/package.json

@@ -15,7 +15,7 @@
   function loader() {
     return deferred({
       critical: await getCriticalData(),
-      lazy1: getLazyData(),
+      lazy: getLazyData(),
     });
   };