Update core/lib/acme/client.rb, core/lib/acme/client/chain_identifier.rb, core/lib/acme/client/error.rb, core/lib/acme/client/faraday_middleware.rb, core/lib/acme/client/util.rb, core/lib/acme/client/version.rb, core/lib/acme/client/jwk/base.rb, core/lib/acme/client/jwk/ecdsa.rb, core/lib/acme/client/resources/account.rb, core/lib/acme/client/resources/authorization.rb, core/lib/acme/client/resources/challenges.rb, core/lib/acme/client/resources/directory.rb, core/lib/acme/client/resources/order.rb, core/lib/acme/client/resources/challenges/base.rb, core/lib/acme/client/resources/challenges/unsupported_challenge.rb, core/debian/changelog, CHANGELOG files