[Infrastructure UI] Fix time range filter in alerts query (#153863)

## 📓 Summary

Closes #153741 

This PR fixes the time range filter by using the
`kibana.alert.time_range` field instead of `@timestamp`.

## 🧪 Testing

- Navigate to Hosts View
- Create an Inventory Alert that will trigger immediately
- Refresh the search until some alerts are triggered
- Play with relative time range (eg. 15 min ago -> 2 min ago) to verify
alerts appears correctly

---------

Co-authored-by: Marco Antonio Ghiani <marcoantonio.ghiani@elastic.co>

x-pack/plugins/infra/public/pages/metrics/hosts/hooks/use_alerts_query.ts

@@ -7,7 +7,7 @@
 import { useCallback, useMemo, useState } from 'react';
 import createContainer from 'constate';
 import { getTime } from '@kbn/data-plugin/common';
-import { TIMESTAMP } from '@kbn/rule-data-utils';
+import { ALERT_TIME_RANGE } from '@kbn/rule-data-utils';
 import { BoolQuery, buildEsQuery, Filter } from '@kbn/es-query';
 import { SnapshotNode } from '../../../../../common/http_api';
 import { useUnifiedSearchContext } from './use_unified_search';
@@ -77,7 +77,7 @@ const createAlertsEsQuery = ({
 };
 
 const createDateFilter = (date: HostsState['dateRange']) =>
-  getTime(undefined, date, { fieldName: TIMESTAMP });
+  getTime(undefined, date, { fieldName: ALERT_TIME_RANGE });
 
 const createAlertStatusFilter = (status: AlertStatus = 'all'): Filter | null =>
   ALERT_STATUS_QUERY[status] ? { query: ALERT_STATUS_QUERY[status], meta: {} } : null;

x-pack/test/functional/es_archives/infra/alerts/mappings.json

@@ -209,6 +209,10 @@
                 "system_status": {
                   "type": "keyword"
                 },
+                "time_range": {
+                  "type": "date_range",
+                  "format": "epoch_millis||strict_date_optional_time"
+                },
                 "uuid": {
                   "type": "keyword"
                 },
@@ -484,6 +488,10 @@
                 "system_status": {
                   "type": "keyword"
                 },
+                "time_range": {
+                  "type": "date_range",
+                  "format": "epoch_millis||strict_date_optional_time"
+                },
                 "uuid": {
                   "type": "keyword"
                 },
@@ -735,6 +743,10 @@
                 "system_status": {
                   "type": "keyword"
                 },
+                "time_range": {
+                  "type": "date_range",
+                  "format": "epoch_millis||strict_date_optional_time"
+                },
                 "uuid": {
                   "type": "keyword"
                 },