[next] fix lambda creation for i18n edge pages (#10630)

An issue similar to https://github.com/vercel/next.js/issues/44381
exists whereby vercel creates lambda functions for edge pages when i18n
is configured.

Fixes https://github.com/vercel/next.js/issues/42854

---------

Co-authored-by: Steven <steven@ceriously.com>

packages/next/src/utils.ts

@@ -2572,6 +2572,11 @@ export function normalizeEdgeFunctionPath(
       shortPath = 'index';
     }
   }
+
+  if (shortPath.startsWith('pages/')) {
+    shortPath = shortPath.replace(/^pages\//, '');
+  }
+
   return shortPath;
 }