We introduced a lint in #4620 that ensures the changelog is updated when we touch a certain crate. This however leads to many "false-positives" where a change to the source code is not actually worth mentioning in the changelog.
To opt out of this change, this patch adds a condition to the job that checks for a `internal:$crate` label and if that is applied, it doesn't run the lint.
Pull-Request: #4673.
This short document describes certain maintainer knowledge that IMO is good to have and should likely make on-boarding a bit easier too.
Pull-Request: #4220.