Revert "Removed deprecation warning from triggers block"

This reverts commit e532807.

Author: kumar-avijit

sumologic/resource_sumologic_monitors_library_monitor.go

@@ -85,8 +85,9 @@ func resourceSumologicMonitorsLibraryMonitor() *schema.Resource {
 			},
 
 			"triggers": {
-				Type:     schema.TypeList,
-				Optional: true,
+				Type:       schema.TypeList,
+				Optional:   true,
+				Deprecated: "The field `triggers` is deprecated and will be removed in a future release of the provider -- please use `trigger_conditions` instead.",
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{
 						"trigger_type": {