Use any for the loader type

packages/next/build/webpack/loaders/next-middleware-wasm-loader.ts

@@ -1,27 +1,21 @@
-import type { webpack } from 'next/dist/compiled/webpack/webpack'
 import crypto from 'crypto'
 
 export type WasmBinding = {
   filePath: string
   name: string
 }
 
-const MiddlewareWasmLoader: webpack.loader.Loader = function (
-  source,
-  _sourceMap
-) {
+export default function MiddlewareWasmLoader(this: any, source: Buffer) {
   const name = `wasm_${sha1(source)}`
   const filePath = `server/middleware-chunks/${name}.wasm`
   const binding: WasmBinding = { filePath, name }
   this._module.buildInfo.nextWasmMiddlewareBinding = binding
   this.emitFile(`/${filePath}`, source, null)
-  return `module.exports = globalThis[${JSON.stringify(name)}];`
+  return `module.exports = name;`
 }
 
 export const raw = true
 
-export default MiddlewareWasmLoader
-
 function sha1(source: string | Buffer) {
   return crypto.createHash('sha1').update(source).digest('hex')
 }