Treat empty docker Health check as healthy to support podman

Podman will include the Health dict even if no health check is defined
for the container (see
containers/podman#20029).

This makes the check in uptime-kuma stuck in Pending

Fixes louislam#3767

server/model/monitor.js

@@ -747,7 +747,8 @@ class Monitor extends BeanModel {
                     let res = await axios.request(options);
 
                     if (res.data.State.Running) {
-                        if (res.data.State.Health && res.data.State.Health.Status !== "healthy") {
+                        // treat empty Status as healthy for podman: https://github.com/louislam/uptime-kuma/issues/3767
+                        if (res.data.State.Health && !["healthy", ""].includes(res.data.State.Health.Status)) {
                             bean.status = PENDING;
                             bean.msg = res.data.State.Health.Status;
                         } else {