chore: bump typescript@4.5 (#9966)

packages/vant/package.json

@@ -70,7 +70,7 @@
     "@vue/compiler-sfc": "^3.2.20",
     "@vue/runtime-core": "^3.2.20",
     "@vue/test-utils": "^2.0.0-rc.16",
-    "typescript": "4.x",
+    "typescript": "~4.5.2",
     "vue": "^3.2.20",
     "vue-router": "^4.0.12"
   },

packages/vant/src/sidebar/Sidebar.tsx

@@ -41,6 +41,10 @@ export default defineComponent({
       setActive,
     });
 
-    return () => <div role="tablist" class={bem()}>{slots.default?.()}</div>;
+    return () => (
+      <div role="tablist" class={bem()}>
+        {slots.default?.()}
+      </div>
+    );
   },
 });