chore(deps): Update whenever package version (#759)

Co-authored-by: Aaron Steers <aj@airbyte.io>

Author: bosper351

airbyte_cdk/utils/datetime_helpers.py

@@ -82,11 +82,10 @@
 """
 
 from datetime import datetime, timedelta, timezone
-from typing import Any, Optional, Union, overload
+from typing import Any, Union, overload
 
 from dateutil import parser
-from typing_extensions import Never
-from whenever import Instant, LocalDateTime, ZonedDateTime
+from whenever import Instant
 
 
 class AirbyteDateTime(datetime):