F0 BotServiceSku does not work in gov

[Virtual-Josh]

When deploying bots to gov the BotServiceSku in the deployment template needs to be S1 for it to work. F0 results in a 403 with the error message that says you can't use the free version in gov.

It's not obvious to me if the better solution is to add another deployment template specifically for gov, or update the docs/deployment templates to use S1. A quick search through this repo shows that the template-with-preexisting-rg.json template has a default value of F0 for the bot sku. There might be other templates, but you'd to take a closer look.

Regardless of what's decided the docs located here will need to be updated.