Update Dehydrated to 0.7.1+ to fix issuance with Let's Encrypt #289
Description
Let's Encrypt is enabling asynchronous order finalization which is supported by Dehydrated, but only more recent versions.
Until Dehydrated is updated to 0.7.1 or later, AutoSSL will fail with an error like:
+ Requesting certificate...
err: ERROR: Problem connecting to server (post for ; curl returned with 3)
, context: ssl_certificate_by_lua*, client: X.Y.Z.11, server: 0.0.0.0:443