docs: Document withContactCounts parameter for Campaigns API#298

promptless-for-oss wants to merge 1 commit intomautic:5.xmautic/developer-documentation-new:5.xfrom

Promptless:promptless/pr-15878-campaign-contact-countsPromptless/developer-documentation-new:promptless/pr-15878-campaign-contact-countsCopy head branch name to clipboard