This patch removes the interactive prompts from `docker push/pull`.
The prompt would only execute on a response status code 403 from the registry
after trying the value set in `RegistryAuth`. Docker Hub could return 404
instead or 429, which would never execute the prompt.
The UX regarding the prompt is also questionable since the user might
not actually want to authenticate with a registry and the CLI could fail fast
instead. The user can always run `docker login` or set the `DOCKER_AUTH_CONFIG`
environment variable to get authenticated.
Signed-off-by: Alano Terblanche <18033717+Benehiko@users.noreply.github.com>
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