v1.1.6-beta.20

Dependencies of Casket have been updated. Some dependencies had a major version bump (such as https://github.com/go-acme/lego which updates from v3 -> v4). There may be issues with this version of Casket.

Casket now builds on Go 1.15. We'll however probably wait until Go 1.16 comes out next month to update the version used for releases.