Fixes #774: suppress dd.concat unknown divisions warning in zonal_stats#857

brendancol merged 2 commits intomasterxarray-contrib/xarray-spatial:masterfrom

fixes-774-warning-on-aligned-axis-for-dask-dataframes-with-`zonal_stats`xarray-contrib/xarray-spatial:fixes-774-warning-on-aligned-axis-for-dask-dataframes-with-`zonal_stats`Copy head branch name to clipboard