Update eslz-portal.json (#845)

Adding Azure Arc-enabled servers as per Marketing Arc name guidance

eslzArm/eslz-portal.json

@@ -2035,7 +2035,7 @@
                         {
                             "name": "esVmMonitoring",
                             "type": "Microsoft.Common.OptionsGroup",
-                            "label": "Ensure Azure VMs (Windows & Linux) and Arc enabled servers are being monitored",
+                            "label": "Ensure Azure VMs (Windows & Linux) and Azure Arc-enabled servers are being monitored",
                             "defaultValue": "Yes (recommended)",
                             "toolTip": "Enabling this Azure Policy will ensure that every virtual machine (Windows, Linux, including Azure Arc enabled servers) are onboarded to Azure Monitor and Security",
                             "constraints": {
@@ -2449,4 +2449,4 @@
             "location": "[steps('basics').resourceScope.location.name]"
         }
     }
-}
+}