v1.3.0 ARM support 💪

What's Changed

This release adds support for ARM among its supported platforms. The mechanism for downloading the plugin binary has also changed, now downloading the binary from Github instead of using Docker.

• Update Go version and CI deps by @jamestelfer in #14
• feat: download binaries from Github instead of using Docker by @jamestelfer in #13

The plugin has shamelessly used the strategy implemented by the monorepo-diff-buildkite-plugin -- thanks to @adikari and the other contributors to that (very useful) plugin!

Full Changelog: v1.2.0...v1.3.0