Update content/webhooks/using-webhooks/automatically-redelivering-failed-deliveries-for-a-repository-webhook.md

Co-authored-by: Miguel Jimenez <10281272+mjimenez98@users.noreply.github.com>

Author: mcdurdin

content/webhooks/using-webhooks/automatically-redelivering-failed-deliveries-for-a-repository-webhook.md

@@ -200,7 +200,7 @@ async function checkAndRedeliverWebhooks() {
         failedDeliveryIDs.length
       } failed webhook deliveries out of ${
         deliveries.length
-      } total deliveries since ${new Date(lastWebhookRedeliveryTime)}.`
+      } total deliveries since ${new Date(Number(lastWebhookRedeliveryTime))}.`
     );
   } catch (error) {
     // If there was an error, log the error so that it appears in the workflow run log, then throw the error so that the workflow run registers as a failure.