fix: quic listener idle_timeout type err

CHANGES-5.0.md

@@ -5,6 +5,7 @@
 * Remove the needless `will_msg` field from the client API. [#8721](https://github.com/emqx/emqx/pull/8721)
 * Fix `$queue` topic name error in management API return. [#8728](https://github.com/emqx/emqx/pull/8728)
 * Fix sometimes `client.connected` and `client.disconnected` could be in wrong order. [#8625](https://github.com/emqx/emqx/pull/8625)
+* Fix quic listener default idle timeout's type. [#8826](https://github.com/emqx/emqx/pull/8826)
 
 ## Enhancements
 

apps/emqx/src/emqx_schema.erl

@@ -869,7 +869,7 @@ fields("mqtt_quic_listener") ->
             sc(
                 duration_ms(),
                 #{
-                    default => "0",
+                    default => 0,
                     desc => ?DESC(fields_mqtt_quic_listener_idle_timeout)
                 }
             )},