enhancement in certificates

Hi,

certbot and acme.sh now sign using elliptic curve by default. If possible, sign the certificates using this new modern signature, as the handshake is more faster.

https://community.letsencrypt.org/t/ecdsa-certificates-by-default-and-other-upcoming-changes-in-certbot-2-0/177013 https://github.com/acmesh-official/acme.sh#:~:text=ec%2D256%20(prime256v1%2C%20%22,is%20the%20default%20key%20type)

Thank you