fix: avoid use new URL during SSR

packages/playground/ssr-vue/src/entry-server.js

@@ -1,5 +1,7 @@
 import { createApp } from './main'
 import { renderToString } from 'vue/server-renderer'
+import { fileURLToPath } from 'url'
+import path from 'path'
 
 export async function render(url, manifest) {
   const { app, router } = createApp()
@@ -20,7 +22,8 @@ export async function render(url, manifest) {
     process.versions.node.split('.')[0] >= '14'
       ? await import('fs/promises')
       : (await import('fs')).promises
-  const msg = await fs.readFile(new URL('./message', import.meta.url), 'utf-8')
+  const __dirname = path.dirname(fileURLToPath(import.meta.url))
+  const msg = await fs.readFile(path.resolve(__dirname, './message'), 'utf-8')
   html += `<p class="file-message">msg read via deep import built-in module: ${msg}</p>`
 
   // the SSR manifest generated by Vite contains module -> chunk/asset mapping