dtype still float64 after `linear_scale_range` in geoparquet output

[VincentVerelst]

I try to save my Sentinel-2 data as uint16 to a geoparquet file by using

...
cube = cube.linear_scale_range(0,65534,0,65534)
vector_cube = cube.aggregate_spatial(geometries, 'mean')
job = vector_cube.execute_batch(
    out_format='Parquet')
...

However, when inspecting the resulting geoparquet file, the datatype is still float64. A very basic process graph that replicates this result is j-240613692f534da4a97777026ec6b45f on CDSE