Add ip6 as valid type for access rules

[Evesy]

It's not yet in the API docs (Which I've raised with CF), a valid type option for Access Rules is ip6 for IPv6 addresses.

Currently if you use type ip with an IPv6 address your rule is successfully created, however subsequent TF plans will try to change the resource:

-/+ resource "cloudflare_access_rule" "example" {
      ~ configuration = { # forces replacement
          ~ "target" = "ip6" -> "ip"
          ~ "value"  = "2604:a880:0800:00a1:0000:0000:171e:5001" -> "2604:a880:800:a1::171e:5001"
        }
      ~ id            = "e5860588ab3b4a598c86da69676017ad" -> (known after apply)
        mode          = "block"
        notes         = "Block"
        zone_id       = "123abc456def"
    }

If you require any tests let me know, wasn't sure if it was necessary for a change to the allowed inputs (Only one type is currently tested anyway)

[jacobbednarz]

Are you able to raise a support ticket with Cloudflare to get this updated in the documentation? We generally don’t like adding functionality or options that aren’t publicly documented.

[Evesy]

I have an open ticket with support, will post back when there's an update

[jacobbednarz]

Awesome, thank you! Happy to land this as long as it's in the works.

(Please do update this when it's added though!)