fix(runtime-core): handle template ref with number values (#8233)

close #8230

Author: Alfred-Skyblue

packages/runtime-core/src/vnode.ts

@@ -404,6 +404,9 @@ const normalizeRef = ({
   ref_key,
   ref_for
 }: VNodeProps): VNodeNormalizedRefAtom | null => {
+  if (typeof ref === 'number') {
+    ref = '' + ref
+  }
   return (
     ref != null
       ? isString(ref) || isRef(ref) || isFunction(ref)