Redirecting http to https for a NextJS app deployed on Firebase App Hosting

I did the following:

1. I created a NextJS app by following the instructions as outlined in
   the NextJS documentation.

2. After this, I deployed this NextJS app with using Firebae App Hosting
   (Public Preview) by following the instructions outlined on the
   Firebase Documentation.

3. Finally, I connected a custom domain (Purchased on GoDaddy) by
   following the tutorial, also outlined in the Custom Domain
   documentation (note the offical documentation do not mention any
   specificities for GoDaddy).

This all worked fine, except for one thing, which is the http -> https redirect.

I could not find any resources that explain how this would work for a NextJS app specifically deployed on a Firebase App Hosting Setting. There are some resources that mention how to do it on the legacy Firebase Hosting, and also some suggestions on how to add something like this on the middleware, but both did not work for me (in the latter my middleware seems to be completely ignored):

if (request.headers.get("x-forwarded-proto") !== "https") {
    return NextResponse.redirect(
        `https://${request.headers.get('host')}${request.nextUrl.pathname}`,
        301
    )
}

What is therefore the recommended way to make sure that when an user visits http://example.com it gets redirected to https://example.com for a NextJS App Deployed on Firebase App Hosting of which the domain is purchased on GoDaddy.com?