Compatibility with rio-vrt v.0.3.1

[Tjalling-dejong]

Kind of request

Changing existing functionality

Enhancement Description

Currently the the test_to_xyz_tiles will break when version 0.3.1 of rio-vrt is installed. This is because the test wants to create virtual raster from a single raster. Rio-vrt v0.3.1 does not allow that.

I suggest to include a check in RasterDataArray.to_xyz_tiles that checks if for the given zoom level a single raster tile is given for creating a vrt and then either raises an error or issues a warning and does not continue to build a vrt.

Use case

No response

Additional Context

No response

[DirkEilander]

@roeldegoede Is the raster functionality to_xyz_tiles and to_slippy_tiles used in the FloodAdapt ecosystem to your knowledge? Otherwise we might as well remove these methods.