Make timeout for restful notifications configurable

Feature Requests
1

Hi there,

is it possible to make the timeout for restful notifications configurable?

It is currently hardcoded to 10 seconds: https://github.com/home-assistant/core/blob/5781e5e03e9e86a8de602352de185831cfc40a4d/homeassistant/components/rest/notify.py#L198C28-L198C28

Configureation could be like this:

notify:
  - name: announce
    platform: rest
    resource: http://localhost:8123/api/services/script/announce
    timeout: 60
    method: POST_JSON
    headers:
      authorization: !secret rest_token
      content-type: "application/json"
    data:
      title: "{{title}}"
      message: "{{message}}"
      channel: silent_announcements

This config is already valid, but it seems it is not used - instead 10 is hardcoded.

I have a script for tts announcment with some custom logic around all my tts announcements, and all to gether this script can be a sync process taking longer than 10 seconds (dpeneding of the length of the announcement). So after 10s this timeout hits.