Fix Pandas2 compatibility for Hive (#32752)

Pandas2 removed deprecated iteritems() in a few classes with items()
being replacement pandas-dev/pandas#37545

The Hive Hook used iteritems when converting to dataframes.

Pandas2 upgrade has been enabled now by databricks-sql upgrade so
it is now possible to use Pandas2 and update our constraints.

GitOrigin-RevId: 00aa6ea72c4d72df6c62ac1dda9bb145bece2e1c

airflow/providers/apache/hive/hooks/hive.py

@@ -376,7 +376,7 @@ def _infer_field_types_from_df(df: pandas.DataFrame) -> dict[Any, Any]:
             }
 
             order_type = OrderedDict()
-            for col, dtype in df.dtypes.iteritems():
+            for col, dtype in df.dtypes.items():
                 order_type[col] = dtype_kind_hive_type[dtype.kind]
             return order_type