According to `autotailor(8)` arguments passed in via the cli take
precedence over the JSON tailoring file contents.
Make the `new_profile` a required field for the json tailoring too and
pass it as an option to the `autotailor` command. This approach has some
trade-offs. It allows us to maintain the explicitness of the manifest
that is consumed by `osbuild`. The downside is that it will override the
profile id that is set by the user in the JSON tailoring file.
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