Add similar fix for Webhook.edit_message as well

Co-authored-by: NeloBlivion <41271523+neloblivion@users.noreply.github.com>

Author: ToothyDev

CHANGELOG.md

@@ -19,7 +19,8 @@ released.
 
 - Include `bypass_slowmode` in `Permissions.all`.
   ([#3231](https://github.com/Pycord-Development/pycord/pull/3231))
-- Fix `PartialMessage.edit` to work with `discord.ui.DesignerView`.
+- Fix `PartialMessage.edit` and `Webhook.edit_message` to work with
+  `discord.ui.DesignerView`.
   ([#3237](https://github.com/Pycord-Development/pycord/pull/3237))
 
 ### Deprecated

discord/webhook/async_.py

@@ -2115,8 +2115,8 @@ async def edit_message(
                 raise InvalidArgument(
                     "Dispatchable Webhook views require an associated state with the webhook"
                 )
-
-            self._state.prevent_view_updates_for(message_id)
+            if self._state._parent:
+                self._state.prevent_view_updates_for(message_id)
             if self.type is not WebhookType.application:
                 with_components = True