more permissive check index xenium

Author: LucaMarconato

src/spatialdata_io/readers/xenium.py

@@ -384,7 +384,7 @@ def _poly(arr: ArrayLike) -> Polygon:
         assert idx is not None
         assert len(idx) == len(geo_df)
         assert np.unique(geo_df.index).size == len(geo_df)
-        assert index.equals(idx)
+        assert np.array_equal(index.to_numpy(), idx.to_numpy())
         geo_df.index = idx
     else:
         geo_df.index = index