Navigating the hotbar via the scroll wheel cannot be rebound

The bug

The usage of the scroll wheel to move to the previous or next slot in the hotbar is not a rebindable control and instead appears to be hardcoded. It also cannot be disabled.

Expected results

There would be somewhere in the Key Binds menu to change what button or other input is used to move to the previous or next slot in the hotbar, likely in the "Inventory" selection with the number keys.

Actual results

There is no such rebindable control listed.