fix(visitors): Fixes go live check.

We need to check whether the live field is defined ignoring its boolean value. When it is false we were ignoring it and still marking the room as live.

resources/prosody-plugins/mod_visitors_component.lua

@@ -388,7 +388,7 @@ local function go_live(room)
 
     -- if missing we assume room is live, only skip if it is marked explicitly as false
     if room.jitsiMetadata and room.jitsiMetadata.visitors
-            and room.jitsiMetadata.visitors.live and room.jitsiMetadata.visitors.live == false then
+            and room.jitsiMetadata.visitors.live ~= nil and room.jitsiMetadata.visitors.live == false then
         return;
     end
 
@@ -624,7 +624,13 @@ process_host_module(muc_domain_prefix..'.'..muc_domain_base, function(host_modul
             go_live(event.room);
         end);
         host_module:hook('muc-occupant-joined', function (event)
-            go_live(event.room);
+            local room = event.room;
+
+            if is_healthcheck_room(room.jid) then
+                return;
+            end
+
+            go_live(room);
         end);
     end