fix: webpack build error on Windows (#71943)

Author: elitalpa

packages/next/src/build/webpack/loaders/next-metadata-route-loader.ts

@@ -76,8 +76,6 @@ async function getStaticAssetRouteCode(
   resourcePath: string,
   fileBaseName: string
 ) {
-  resourcePath = path.posix.normalize(resourcePath)
-
   const cache =
     fileBaseName === 'favicon'
       ? 'public, max-age=0, must-revalidate'
@@ -107,7 +105,7 @@ const buffer = Buffer.from(${JSON.stringify(
 if (${isTwitter || isOpenGraph}) {
   const fileSizeInMB = buffer.byteLength / 1024 / 1024
   if (fileSizeInMB > ${fileSizeLimit}) {
-    throw new Error('File size for ${imgName} image "${resourcePath}" exceeds ${fileSizeLimit}MB. ' +
+    throw new Error('File size for ${imgName} image ${JSON.stringify(resourcePath)} exceeds ${fileSizeLimit}MB. ' +
     \`(Current: \${fileSizeInMB.toFixed(2)}MB)\n\` +
     'Read more: https://nextjs.org/docs/app/api-reference/file-conventions/metadata/opengraph-image#image-files-jpg-png-gif'
     )