Azure preset should use node 18 for apiRuntime

[DaDlugosch]

Environment

Nitro v2.7
Nuxt v3.8.0

Reproduction

Reproduction is not available now, because I fixed it by replacing node:16 with node:18.

Describe the bug

When using Azure Static Web Apps as a hosting provider for the app which uses server folder for routes / middleware, and you are using there $fetch with default preset for Azure Functions runtime, which is node:16, you encountered an error, that _fetch is not available.

It is caused by major update in Nitro 2.7, which uses native fetch for fetch requests (#1724) which is only supported in node engines 18+.

It would be great to replace default node:16 value for apiRuntime Azure property with node:18 which is still in public preview, however instead of errors responses, fetch requests will start work on Azure Static Web Apps.
Also, after update, it needs to be replaced in docs for Azure preset.

Additional context

No response

Logs

No response

[pi0]

Default is upgraded in nightly channel and will change in next Nitro release 👍🏼

[gps-lasrol]

@pi0 you know when the next release is planned for?

[pi0]

This week as planed. You can use nightly channel btw in the meantime.