Support a wider range of object label characters #12
Description
Presently the acceptable characters for a label on a service, network, or value are limited to ASCII letters and numbers, plus period (.) and dash (-). Supervisor is expanding the set of acceptable characters to support services like traefik and caddy-docker-proxy.
We want to support this extension of acceptable characters across all balena tools. balena-cli relies on balena-compose for label validation.