update ring with new ip address when instance is lost, rejoins, but heartbeat is disabled#6271

alanprot merged 5 commits intocortexproject:mastercortexproject/cortex:masterfrom

CharlieTLe:fix-lifecycler-memberlist-rejoin-as-active-new-ip-addrCharlieTLe/cortex:fix-lifecycler-memberlist-rejoin-as-active-new-ip-addrCopy head branch name to clipboard