[BUG] hash_aggregate_test.py::test_hash_multiple_grpby_pivot and row_conversion_test.py::test_row_conversions_fixed_width_wide fails on GB100 and cuda12.8

[BUG] hash_aggregate_test.py::test_hash_multiple_grpby_pivot and row_conversion_test.py::test_row_conversions_fixed_width_wide fails on GB100 and cuda12.8 #32672