Suppress the config import confirmation text in the output of drush deploy (to avoid "yes"-related madness).

[maxstarkenburg]

Is your feature request related to a problem? Please describe.

A colleague and I wasted non-insignificant time trying to debug a problem that was the result of a misunderstanding of drush deploy behavior, due to something it outputs while running (and maybe a little ignorance of a certain shell command). If there are config diffs when running drush deploy, it will output Import the listed configuration changes? (yes/no) [yes]:, and sometimes the actual import takes a while, so it can appear to be waiting for your response (like a normal drush cim).

I guess she was unaware that deploy assumes -y or --yes if only one waits. I've also gotten tripped up by this on occasion, but must have typed y out of habit, whereas she typed in a full yes. This resulted in her terminal outputting hundreds of thousands of lines of the letter y in a matter of seconds, because apparently that's the default behavior of the *nix yes command (which I only had the most passing familiarity with before today, only in a scripting context, so didn't realize sooner what the problem was).

Describe the solution you'd like

Don't output Import the listed configuration changes? (yes/no) [yes]: while drush deploy is running, at least for the default/non-verbose mode. Or maybe it's just recycling what cim outputs (it's indeed the same exact text, barring --no usage) in which case it needs more forceful prevention/suppressing somehow?

Also, change the example in drush deploy --help to not use -y (and to remove and accept all prompts), since it implies that's not already the default behavior.

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Additional context
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[weitzman]

If you dont want avoid prompts and just accept defaults, run with --yes or --no-interaction.

I didnt know about the yes command. Thats bizaare.