[Inventory rule] Fix alerts not being visible when number of alerts a…

…re more than max alert limit (elastic#178019)

Fixes elastic#171976

## Summary

Fixes issue when the number of alerts is more than the max number in the
inventory rule similar to what was done in
elastic#171960.


![image](https://github.com/elastic/kibana/assets/12370520/e99c05b0-20c3-4ee9-8500-ffb6f8975d19)


![image](https://github.com/elastic/kibana/assets/12370520/5ee856e2-1af1-41bb-b5a3-4008f089be78)

x-pack/plugins/observability_solution/infra/server/lib/alerting/inventory_metric_threshold/inventory_metric_threshold_executor.ts

@@ -104,6 +104,7 @@ export const createInventoryMetricThresholdExecutor = (libs: InfraBackendLibs) =
         getAlertStartedDate,
         getAlertUuid,
         getAlertByAlertUuid,
+        alertFactory: baseAlertFactory,
       } = services;
       const alertFactory: InventoryMetricThresholdAlertFactory = (
         id,
@@ -194,8 +195,15 @@ export const createInventoryMetricThresholdExecutor = (libs: InfraBackendLibs) =
       );
 
       let scheduledActionsCount = 0;
+      const alertLimit = baseAlertFactory.alertLimit.getValue();
+      let hasReachedLimit = false;
       const inventoryItems = Object.keys(first(results)!);
       for (const group of inventoryItems) {
+        if (scheduledActionsCount >= alertLimit) {
+          // need to set this so that warning is displayed in the UI and in the logs
+          hasReachedLimit = true;
+          break; // once limit is reached, we break out of the loop and don't schedule any more alerts
+        }
         // AND logic; all criteria must be across the threshold
         const shouldAlertFire = results.every((result) => result[group]?.shouldFire);
         const shouldAlertWarn = results.every((result) => result[group]?.shouldWarn);
@@ -300,6 +308,7 @@ export const createInventoryMetricThresholdExecutor = (libs: InfraBackendLibs) =
         }
       }
 
+      baseAlertFactory.alertLimit.setLimitReached(hasReachedLimit);
       const { getRecoveredAlerts } = services.alertFactory.done();
       const recoveredAlerts = getRecoveredAlerts();