* Migrate from the internal Drone server using a GitHub Workflow
to perform the multi-arch container image build
* Use self-hosted GitHub runners on ARM64 to perform the ARM64
build step faster that QEMU/KVM emulation
* Mandate approval for all workflow runs from outside contributors
since the builds use push credentials and partially run internally
* Quay builds simply build using a Dockerfile and don't
support build-args or Makefile invocation, so arguments
must be set directly in the Dockerfile
* Rather than setting potentially diverging args in the
Makefile vs Dockerfile, use the Dockerfile for now
* Package the upstream Kubernetes `kubelet` and dependencies for
use on container-optimized OS distributions
* Include `kubectl` for convenience for node deletion on preemption
Background:
* Kubernetes releases the Kubelet as a binary for distros to
package. Upstream no longer wishes to maintain the hyperkube
container image
