github.com/go-acme/lego/v4/acme/api does not enforce HTTPS

Summary It was discovered that the github.com/go-acme/lego/v4/acme/api package thus the lego library and the lego cli as well don't enforce HTTPS when talking to CAs as an ACME client. Details Unlike the http-01 challenge which solves an ACME challenge over unencrypted HTTP, the ACME protocol...