Feature: Add more DNS Challenge providers to Traefik template

[StewartPolsky]

Hi Christian,

I am loving the use of your boilerplates CLI tool.
Could you please update the template for Traefik to include more DNS Challenge providers. Currenty the only option is Cloudflare. Traefik does support a number of other popular providers. In my case, Porkbun.

https://go-acme.github.io/lego/dns/

Thank you!

[ChristianLempa]

@StewartPolsky good point, great idea! I'll do this, we might have to add a few others as well