debut 0.9.8 has requirement chardet<4.0.0,>=3.0.0, but you'll have chardet 4.0.0 which is incompatible

[tdruez]

This was relaxed in the toolkit: aboutcode-org/scancode-toolkit@396805f
We should do the same here.

[pombredanne]

I pushed a new version 0.9.9 with relaxed upper bound version spec.
Thanks!