[h3] [unhandled] next is not a function

Environment

• Operating System: Darwin
• Node Version: v16.15.0
• Nuxt Version: 2.15.8
• Nitro Version: 0.6.0
• Package Manager: npm@8.19.2
• Builder: webpack
• User Config: telemetry, env, server, nitro, loading, target, head, css, plugins, components, buildModules, modules, auth, oneSignal, fontawesome, i18n, axios, vWave, performance, build, buildDir, dir, webpack, serverHandlers, devServerHandlers, typescript, bridge
• Runtime Modules: @nuxtjs/axios@5.13.6, @nuxtjs/auth-next@5.0.0-1648802546.c9880dc, @nuxtjs/i18n@7.3.0, @nuxtjs/onesignal@3.0.0-beta.16, @nuxtjs/color-mode@3.1.8, v-wave/nuxt
• Build Modules: (), @nuxtjs/eslint-module@3.1.0, nuxt-compress@5.0.0, @nuxtjs/fontawesome@1.1.2, @nuxt/bridge@3.0.0-27778050.a725a7a

Reproduction

https://codesandbox.io/s/nuxt-bridge-bug-report-h3-rf0rw5

Describe the bug

Some modules like nuxt/sitemap ou nuxt/pwa generate this error: [h3] [unhandled] next is not a function with nitro 6.0.0.

This is probably due to last update of nitro to unjs/h3.

Note: this warning is show on the compilation of the app:
WARN [h3] Implicit event handler conversion is deprecated. Use eventHandler() or fromNodeMiddleware() to define event handlers.

Excuse if I miss something, it's my first issue that a report. I try to do it wright, and I hope you can fix it this issue 🙏. Thx for the amazing work.

Additional context

No response

Logs

ERROR  [h3] [unhandled] next is not a function                                                                                                               11:54:48

  at Object.serveStatic [as handler] (node_modules/serve-static/index.js:75:16)
  at Object.handler (node_modules/h3/dist/index.mjs:567:31)
  at processTicksAndRejections (node:internal/process/task_queues:96:5)
  at async toNodeHandle (node_modules/nuxi/dist/chunks/index2.mjs:879:7)

Start with the linked CodeSandbox reproduction and the logged path through node_modules/serve-static/index.js, node_modules/h3/dist/index.mjs, and nuxi's toNodeHandle entry point. Trace how the Nuxt Bridge/Nitro handler reaches serve-static, then verify the reproduction no longer reports "next is not a function" or the related implicit-handler warning.