Possibility to Deploy SSR (Next.js) app with github action

### The use case you're trying to solve

I have my GitHub action config generated alongside with setting up webframeworks support
for SSR app (Next.js). When I deploy the app manually it all works as expected, but when using FirebaseExtended/action-hosting-deploy it leads to getting 404 for all dynamic pages (while static content works fine).

A quick search on this topic showed up that this GitHub action doesn't yet support deploying of Cloud Functions, that's why all the dynamic part of the app is being constantly lost during deployment. But since everything is being deployed correctly, seems Previews already support dynamic content through Cloud Functions.

### Change to the action that would solve that use case

There is already a potential fix for this in opened PRs:
https://github.com/FirebaseExtended/action-hosting-deploy/pull/190