fix(parser): skip compat mode check for SFC root `<template>` tags (#10034)

Fixes https://github.com/vitejs/vite-plugin-vue/issues/330

packages/compiler-core/src/parser.ts

@@ -692,6 +692,7 @@ function onCloseTag(el: ElementNode, end: number, isImplied = false) {
     }
 
     if (
+      !tokenizer.inSFCRoot &&
       isCompatEnabled(
         CompilerDeprecationTypes.COMPILER_NATIVE_TEMPLATE,
         currentOptions,