[ruleset] Add managed_challenge action

[vences]

Current Terraform and Cloudflare provider version

➜ terraform -v
Terraform v1.1.4
on darwin_amd64
+ provider registry.terraform.io/cloudflare/cloudflare v3.8.0

Your version of Terraform is out of date! The latest version
is 1.1.5. You can update by downloading from https://www.terraform.io/downloads.html

Description

Managed challenge has been added as an action recently. The Feature Request is to support managed challenge in Ruleset. Another FR has been created to support it on the Rate Limiting -> #1431
The documentation related to that action is here

Use cases

Support an action of managed_challenge in ruleset.

Potential Terraform configuration

resource "cloudflare_ruleset" "zone_level_managed_waf" {
  zone_id     = var.cloudflare_zone_id
  name        = "managed WAF"
  description = "managed WAF ruleset description"
  kind        = "zone"
  phase       = "http_request_firewall_managed"

  rules {
    action = "execute"
    action_parameters {
      id = "efb7b8c949ac4650a09736fc376e9aee"
      overrides {
        action = "managed_challenge"
      }
    }
    expression = "true"
    description = "Execute default rules in Cloudflare Managed Ruleset in managed challenge mode on my zone-level phase entry point ruleset"
    enabled = true
  }
}

Current output

╷
│ Error: expected rules.0.action_parameters.0.overrides.0.action to be one of [block challenge ddos_dynamic execute force_connection_close js_challenge log rewrite score skip], got managed_challenge
│ 
│   with cloudflare_ruleset.zone_level_managed_waf,
│   on rulesets_zone.tf line 48, in resource "cloudflare_ruleset" "zone_level_managed_waf":
│   48:         action = "managed_challenge"
│ 
╵

References

• Documentation: https://developers.cloudflare.com/ruleset-engine/rules-language/actions#supported-actions
• Change need to be done on cloudflare-go: https://github.com/cloudflare/cloudflare-go/blob/master/rulesets.go#L33