Fix DatagramProtocol address type for IPv6

Author: nightcityblade

stdlib/@tests/test_cases/asyncio/check_protocols.py

@@ -0,0 +1,5 @@
+import asyncio
+
+protocol = asyncio.DatagramProtocol()
+protocol.datagram_received(b"", ("127.0.0.1", 80))
+protocol.datagram_received(b"", ("::1", 80, 0, 0))

stdlib/asyncio/protocols.pyi

@@ -31,7 +31,7 @@ class DatagramProtocol(BaseProtocol):
     # Use tuple[str | Any, int] to not cause typechecking issues on most usual cases.
     # This could be improved by using tuple[AnyOf[str, int], int] if the AnyOf feature is accepted.
     # See https://github.com/python/typing/issues/566
-    def datagram_received(self, data: bytes, addr: tuple[str | Any, int]) -> None: ...
+    def datagram_received(self, data: bytes, addr: tuple[str | Any, int] | tuple[str, int, int, int]) -> None: ...
     def error_received(self, exc: Exception) -> None: ...
 
 class SubprocessProtocol(BaseProtocol):