Default configuration for next js needs to be updated

[AJHassall]

I think the change from the command 'next export' to "output: export" in next.config.js has broken the default configuration

this doesnt work

      - name: Setup Pages
        uses: actions/configure-pages@v3
        with:
               static_site_generator: next

this does

      - name: Setup Pages
        uses: actions/configure-pages@v3

I have set up my own next config.

I spent some time trying to find out what was breaking my page so I thought I would pass this on so someone else doesnt have to

[AJHassall]

This might be resolved by #102

[JamesMGreene]

A fix for this is now included in actions/configure-pages@v5. 🚀