Compute find_objects before checking values

This is important for changes that will be made to `find_objects`, which
require returning a `Delayed` object instead of a `list` of `Delayed`
objects.

tests/test_dask_image/test_ndmeasure/test_core.py

@@ -202,12 +202,12 @@ def test_find_objects(max_labels):
             dask_image.ndmeasure.find_objects(d_l, max_labels)
     else:
         n_r = spnd.find_objects(n_l, max_labels)
-        d_r = dask_image.ndmeasure.find_objects(d_l, max_labels)
+        d_r = dask_image.ndmeasure.find_objects(d_l, max_labels).compute()
 
         assert len(n_r) == len(d_r)
 
         for i in irange(len(n_r)):
-            assert n_r[i] == d_r[i].compute()
+            assert n_r[i] == d_r[i]
 
 
 @pytest.mark.parametrize(