TST: sunpy has 2 failures in downstream job

[pllim]

Example log: https://github.com/astropy/extension-helpers/actions/runs/18472591444/job/52629786869

cc @astrofrog @Cadair

________ test_read_memmap ________

    def test_read_memmap():
        data, _ = _fits.read(TEST_AIA_IMAGE, memmap=True)[0]
        assert data.base is not None
>       assert isinstance(data.base, mmap.mmap)
E       AssertionError: assert False
E        +  where False = isinstance(array([[3.09557e-319, 0.00000e+000, 3.03865e-319, ..., 0.00000e+000,\n        2.83628e-319, 2.94379e-319],\n       [2.93...  [2.93747e-319, 3.13984e-319, 2.94379e-319, ..., 0.00000e+000,\n        2.84261e-319, 2.83628e-319]], shape=(128, 128)), <class 'mmap.mmap'>)
E        +    where array([[3.09557e-319, 0.00000e+000, 3.03865e-319, ..., 0.00000e+000,\n        2.83628e-319, 2.94379e-319],\n       [2.93...  [2.93747e-319, 3.13984e-319, 2.94379e-319, ..., 0.00000e+000,\n        2.84261e-319, 2.83628e-319]], shape=(128, 128)) = array([[-1.25,  0.  ,  1.  , ...,  0.  ,  0.5 , -0.75],\n       [ 0.75, -0.25, -0.5 , ...,  0.25,  0.  , -0.25],\n      .....,  0.75, -0.75,  0.  ],\n       [ 0.75,  1.5 , -0.75, ...,  0.  , -0.5 ,  0.5 ]],\n      shape=(128, 128), dtype='>f8').base
E        +    and   <class 'mmap.mmap'> = mmap.mmap

sunpy/io/tests/test_fits.py:183: AssertionError

________ test_map_fits ________

    def test_map_fits():
        fits_map = sunpy.map.Map(AIA_171_IMAGE, memmap=False)
        assert isinstance(fits_map, sunpy.map.GenericMap)
        # The base of an array that owns its memory is None
>       assert fits_map.data.base is None
E       AssertionError: assert array([3.09557e-319, 0.00000e+000, 3.03865e-319, ..., 0.00000e+000,\n       2.84261e-319, 2.83628e-319], shape=(16384,)) is None
E        +  where array([3.09557e-319, 0.00000e+000, 3.03865e-319, ..., 0.00000e+000,\n       2.84261e-319, 2.83628e-319], shape=(16384,)) = array([[-1.25,  0.  ,  1.  , ...,  0.  ,  0.5 , -0.75],\n       [ 0.75, -0.25, -0.5 , ...,  0.25,  0.  , -0.25],\n      .....,  0.75, -0.75,  0.  ],\n       [ 0.75,  1.5 , -0.75, ...,  0.  , -0.5 ,  0.5 ]],\n      shape=(128, 128), dtype='>f8').base
E        +    where array([[-1.25,  0.  ,  1.  , ...,  0.  ,  0.5 , -0.75],\n       [ 0.75, -0.25, -0.5 , ...,  0.25,  0.  , -0.25],\n      .....,  0.75, -0.75,  0.  ],\n       [ 0.75,  1.5 , -0.75, ...,  0.  , -0.5 ,  0.5 ]],\n      shape=(128, 128), dtype='>f8') = <sunpy.map.sources.sdo.AIAMap object at 0x7f6385563cb0>\nSunPy Map\n---------\nObservatory:		 SDO\nInstrument:		 AIA 3\nDet.....,  0.75, -0.75,  0.  ],\n       [ 0.75,  1.5 , -0.75, ...,  0.  , -0.5 ,  0.5 ]],\n      shape=(128, 128), dtype='>f8').data

sunpy/map/tests/test_map_factory.py:390: AssertionError