update signature

Author: dmkjfs

src/domain/auth/auth/interfaces/email/client.py

@@ -47,8 +47,8 @@ async def __aenter__(self) -> Self:
 
     async def __aexit__(
         self,
-        exc_type: type[Exception],
-        exc_val: Exception,
-        exc_tb: TracebackType,
+        exc_type: type[Exception] | None,
+        exc_val: Exception | None,
+        exc_tb: TracebackType | None,
     ) -> None:
         pass