Implement ARI (ACME Renewal Info)

[sim0n-v]

Implementation of ACME Renewal Info (aka ARI).

Sources:

• https://letsencrypt.org/2024/04/25/guide-to-integrating-ari-into-existing-acme-clients/
• https://www.rfc-editor.org/rfc/rfc9773.html

[sim0n-v]

Hi,
@Neilpang, I think the workflow failed because of the infrastructure, not because of the code. Can you re-trigger please?

Thanks!

[sim0n-v]

Hey!
I'm still running into some issues with the checks... I don't think they're related to the code itself.

Any idea?