feat(access_rule): add support for managed_challange

[duraje]

same as previous PR for rate limit

[github-actions]

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[jacobbednarz]

API references: https://api.cloudflare.com/#account-level-firewall-access-rule-create-access-rule

[jacobbednarz]

thanks for this @duraje 👏

[duraje]

you are welcome @jacobbednarz. With this in place i think we will be the first customer who fully replaced legacy_captcha with managed_captcha in automated fashion. I have already manually switched the two remaining access_rules and just waiting to add it back in terraform. Thank you for your support

[jacobbednarz]

that is awesome news and congrats on the move! hopefully the provider is adding value and making managing the configuration a bit easier for you and your org.

[duraje]

for us the Cloudflare terraform provider it is core of managing our Cloudflare account ;-)