doc: add missing deprecation not

PR-URL: #33203
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>

Author: ronag

doc/api/http.md

@@ -573,6 +573,8 @@ deprecated:
   - v13.14.0
 -->
 
+> Stability: 0 - Deprecated: Use [`request.destroy()`][] instead.
+
 Marks the request as aborting. Calling this will cause remaining data
 in the response to be dropped and the socket to be destroyed.