tech debt - remove type: ignore comments that work around click library issue

[adamsachs]

Is your feature request related to a specific problem?

In #3746 we worked around a known mypy issue introduced by click version 8.1.4 by adding in comments to ignore type checking with some of our click decorators -- see #3745 and pallets/click#2558.

Describe the solution you'd like

Once pallets/click#2558 is resolved and released in a new version of click, we should be able to (and should automatically) pull in that updated dependency, and be able to revert our workaround here, such that we're no longer ignoring type checking on these lines.

Describe alternatives you've considered, if any

Keep things as is - this has a pretty minor impact, really just code maintenance.

Additional context

more context in #3745 and pallets/click#2558