feat(c/v3-cli): --log-level=NEVER or let it be part of JSON or YAML when --out is given so

[jjangga0214]

Hi!

There is --out option.

https://hasura.io/docs/3.0/cli/commands/ddn_supergraph_build_create

I want to set this option to JSON.
That's because I should parse the build id programmatically.
However, as logs cannot be disabled, parsing stdout as JSON(or yaml) fails.

There should be

• --log-level=NEVER
  OR
• log should be part of JSON(or yaml).

Thanks :)

[jjangga0214]

Closing in favor of #10660