The cloud.drone.io service we use for aarch64 builds is no longer
accepting our API requests for triggering builds. We have been in
contact with them, but have been unable to resolve the issue. Going
forward, we will still be adding feedstocks to cloud.drone.io but we
have moved all aarch64 builds to emulated builds on Azure.
Cross-compilers are available as well for resource-intensive builds.
Please rerender your feedstock as needed to get the updated
configuration.