mamba install -c conda-forge autogluon does not install ray due to the fact that we are pinning its dependency grpcio to a lower version in conda https://github.com/conda-forge/autogluon.core-feedstock/blob/f08041aeeeff124bc3dd0742d91a0af691e468c5/recipe/meta.yaml#L44-L46
We should add that back once the upstream fix in ray is released, before we add support to newer versions of ray in #3774