fix: add missing delete_after parameter

CHANGELOG.md

@@ -151,6 +151,8 @@ These changes are available on the `master` branch, but have not yet been releas
 - Fixed type-hinting of `author` property of `ApplicationContext` to include typehinting
   of `User` or `Member`.
   ([#2148](https://github.com/Pycord-Development/pycord/pull/2148))
+- Fixed missing `delete_after` parameter in overload type-hinting for `send` method in
+  `Webhook` class. ([#2156](https://github.com/Pycord-Development/pycord/pull/2156))
 
 ## [2.4.1] - 2023-03-20
 

discord/webhook/async_.py

@@ -1567,6 +1567,7 @@ async def send(
         thread: Snowflake = MISSING,
         thread_name: str | None = None,
         wait: Literal[True],
+        delete_after: float = None,
     ) -> WebhookMessage:
         ...
 
@@ -1588,6 +1589,7 @@ async def send(
         thread: Snowflake = MISSING,
         thread_name: str | None = None,
         wait: Literal[False] = ...,
+        delete_after: float = None,
     ) -> None:
         ...