Backport of Adds PassiveHealthCheck Fields to ServiceDefaults and IngressGateway into release/1.16.x#18947

missylbytes merged 3 commits intorelease/1.16.xhashicorp/consul:release/1.16.xfrom

backport/net-5164-update-docs-with-passive-health-check/curiously-eminent-mammothhashicorp/consul:backport/net-5164-update-docs-with-passive-health-check/curiously-eminent-mammothCopy head branch name to clipboard