Make the health node available even if all nodes are marked for shutdown (#92193)#112825

nmesot wants to merge 2 commits intoelastic:mainelastic/elasticsearch:mainfrom

nmesot:feat/make-health-node-available-if-all-nodes-shutdownnmesot/elasticsearch:feat/make-health-node-available-if-all-nodes-shutdownCopy head branch name to clipboard