feat: add query for seeing issues while configuring a callback

aws/eks/cloudwatch_queries.tf

@@ -335,3 +335,19 @@ fields @timestamp, @notification_id, @url, @error
 QUERY
 }
 
+resource "aws_cloudwatch_query_definition" "callback-config-failure" {
+  count = var.cloudwatch_enabled ? 1 : 0
+  name  = "Callbacks / Error configuring a callback"
+
+  log_group_names = [
+    local.eks_application_log_group
+  ]
+
+  query_string = <<QUERY
+fields @timestamp, log, kubernetes.container_name as app, kubernetes.pod_name as pod_name, @logStream
+| filter kubernetes.container_name like /${local.admin_name}/
+| filter @message like /Unable to create callback/
+| sort @timestamp desc
+| limit 20
+QUERY
+}