Apply suggestion from @Copilot

Co-authored-by: Copilot <[email protected]>

Author: aaronsteers

airbyte_cdk/sources/declarative/incremental/datetime_based_cursor.py

@@ -315,8 +315,7 @@ def parse_date(self, date: str) -> datetime.datetime:
             except ValueError:
                 pass
 
-        parsed_dt = ab_datetime_try_parse(date)
-        if parsed_dt:
+        if parsed_dt is not None:
             return parsed_dt
 
         raise ValueError(f"No format in {self.cursor_datetime_formats} matching {date}")