Fix redirect for old cancel_event page

This page was previously at
/en-US/docs/Web/API/HTMLDialogElement/cancel_event
and was moved in
commit 0900a56 ("Add missing `cancel` event to `<input type=file>`")

files/en-us/_redirects.txt

@@ -8408,7 +8408,7 @@
 /en-US/docs/Web/API/HTMLContentElement.select	/en-US/docs/Web/API/HTMLSlotElement
 /en-US/docs/Web/API/HTMLContentElement/getDistributedNodes	/en-US/docs/Web/API/HTMLSlotElement
 /en-US/docs/Web/API/HTMLContentElement/select	/en-US/docs/Web/API/HTMLSlotElement
-/en-US/docs/Web/API/HTMLDialogElement/cancel	/en-US/docs/Web/API/HTMLElement/cancel_event
+/en-US/docs/Web/API/HTMLDialogElement/cancel_event	/en-US/docs/Web/API/HTMLElement/cancel_event
 /en-US/docs/Web/API/HTMLDialogElement/close()	/en-US/docs/Web/API/HTMLDialogElement/close
 /en-US/docs/Web/API/HTMLDialogElement/returnValue()	/en-US/docs/Web/API/HTMLDialogElement/returnValue
 /en-US/docs/Web/API/HTMLDialogElement/show()	/en-US/docs/Web/API/HTMLDialogElement/show