issues and workarounds with xarray and whitebox

[thurber]

A couple notes:

• newer versions of xarray/rasterio have deprecated xarray.open_rasterio(...) in favor of an additional dependency on rioxarray and rioxarray.open_rasterio(...); CERF could probably implement this new paradigm and update the minimum dependency versions
• newer versions of whitebox have added support for musl C standard that can be activated in a couple ways (see GLIBC version jblindsay/whitebox-tools#338); this could be utilized to avoid common failures on many linux distros (including deception)