Allow the whole onboarding process to be done without a CC, don't even mention that.
But when a user is doing their first deploy, tell them they need a CC to complete this step.
Thanks to the sunken cost fallacy, users will be more likely to proceed.
All the big SAAS offerings utilize this pattern.
It’s one of the best ways to get a nice core group of dedicated users that will help you iterate.
FYI the idea is to specify the nature of the trigger upfront. e.g. Self harm or whatever. That way people can judge whether they want to read the rest of the comment or not.