TST: explicitly skip a newly generated test

yt/geometry/coordinates/tests/test_axial_pixelization.py

@@ -4,5 +4,9 @@
 
 def test_axial_pixelization():
     for geom in sorted(_geom_transforms):
+        if geom == "spectral_cube":
+            # skip this case as it was added much later and we don't want to keep
+            # adding yield-based tests during the nose->pytest migration
+            continue
         ds = fake_amr_ds(geometry=geom)
         yield AxialPixelizationTest(ds)