We're actually pushing to the `xcaddy` cloudsmith repo, not `testing` (copy-pasted from `caddy` repo, so it had the wrong string). Purely a visual bug.
* ci: Pull updates from Caddy, build .deb as well
* ci: Pull ci.yml updates from Caddy, including testing on Go 1.15
* ci: Add publishing to Cloudsmith
* ci: Update release.yml to match changes in Caddy
* ci: Switch to keeping armv7 as the armhf .deb