Fix: Use `retryInterval` when a monitor is `DOWN` (#4476)

server/model/monitor.js

@@ -897,7 +897,6 @@ class Monitor extends BeanModel {
                 retries = 0;
 
             } catch (error) {
-
                 if (error?.name === "CanceledError") {
                     bean.msg = `timeout by AbortSignal (${this.timeout}s)`;
                 } else {
@@ -970,6 +969,7 @@ class Monitor extends BeanModel {
             } else if (bean.status === MAINTENANCE) {
                 log.warn("monitor", `Monitor #${this.id} '${this.name}': Under Maintenance | Type: ${this.type}`);
             } else {
+                beatInterval = this.retryInterval;
                 log.warn("monitor", `Monitor #${this.id} '${this.name}': Failing: ${bean.msg} | Interval: ${beatInterval} seconds | Type: ${this.type} | Down Count: ${bean.downCount} | Resend Interval: ${this.resendInterval}`);
             }