logging prefix: dockerfile-rails gem, promoted by rails 7.1+, uses foreman for multi-process support

[dfuentes77]

But I'm noticing there isn't a way to disable the logging prefix, so that we can send our own raw logs (e.g. lograge/JSON) to external services (e.g. Datadog), without having to filter out the "process name | " part of the log. Is everyone just not using foreman for this or are they manually filtering out the log prefix at the destination service? I figure a flag to disable all of the prefix would be the easiest.