Pint errors on python 3.11 and windows

[Illviljan]

What happened?

The CI seems to consistently crash on test_units.py now:

=========================== short test summary info ===========================
FAILED xarray/tests/test_units.py::TestVariable::test_aggregation[int32-method_max] - TypeError: no implementation found for 'numpy.max' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestVariable::test_aggregation[int32-method_min] - TypeError: no implementation found for 'numpy.min' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_aggregation[float64-function_max] - TypeError: no implementation found for 'numpy.max' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_aggregation[float64-function_min] - TypeError: no implementation found for 'numpy.min' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_aggregation[int32-function_max] - TypeError: no implementation found for 'numpy.max' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_aggregation[int32-function_min] - TypeError: no implementation found for 'numpy.min' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_aggregation[int32-method_max] - TypeError: no implementation found for 'numpy.max' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_aggregation[int32-method_min] - TypeError: no implementation found for 'numpy.min' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_unary_operations[float64-round] - TypeError: no implementation found for 'numpy.round' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataArray::test_unary_operations[int32-round] - TypeError: no implementation found for 'numpy.round' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataset::test_aggregation[int32-method_max] - TypeError: no implementation found for 'numpy.max' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
FAILED xarray/tests/test_units.py::TestDataset::test_aggregation[int32-method_min] - TypeError: no implementation found for 'numpy.min' on types that implement __array_function__: [<class 'pint.util.Quantity'>]
= 12 failed, 14880 passed, 1649 skipped, 146 xfailed, 68 xpassed, 574 warnings in 737.19s (0:12:17) =

For more details:
https://github.com/pydata/xarray/actions/runs/5438369625/jobs/9889561685?pr=7955

[max-sixty]

Is this still an issue? I'm guessing we can close given we have successful CI? Or tests are still excluded?

[keewis]

should have been closed by #8445.