`progress` and `cancel` on background callbacks show type errors

[LiamConnors]

Describe your context
Please provide us your environment, so we can easily reproduce the issue.

dash                 3.0.0rc1

Describe the bug

progress and cancel on background callbacks show type errors in Dash 3.0.0rc1

cancel shows an error when passing a single component

progress shows an error when passing a list of outputs: