[ReleasePR alertsmanagement] [Hub Generated] Review request for Microsoft.AlertsManagement to add version preview/2019-05-05-preview (#2537)

Create to sync Azure/azure-rest-api-specs#19920
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/main...azure-sdk:sdkAuto/alertsmanagement?expand=1)

Author: msftbot[bot]

schemas/2019-05-05-preview/Microsoft.AlertsManagement.json

@@ -205,6 +205,17 @@
           ],
           "description": "condition to trigger an action rule"
         },
+        "alertRuleName": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/Condition"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "condition to trigger an action rule"
+        },
         "description": {
           "oneOf": [
             {