feat: avoid wrapping middleware files when in standalone mode

Author: logaretm

packages/nextjs/src/config/webpack.ts

@@ -276,7 +276,8 @@ export function constructWebpackConfigFunction({
       });
 
       // Wrap middleware
-      if (userSentryOptions.autoInstrumentMiddleware ?? true) {
+      const canWrapStandaloneMiddleware = userNextConfig.output !== 'standalone' || (major && major < 16);
+      if ((userSentryOptions.autoInstrumentMiddleware ?? true) && canWrapStandaloneMiddleware) {
         newConfig.module.rules.unshift({
           test: isMiddlewareResource,
           use: [