Adding "path" to hidden field's context (ConditionalPropertyCallbackContext)

[good-idea]

Is your feature request related to a problem? Please describe.

Yes: I would like to hide a field conditionally based on whether or not it is within an ancestor block of a particular type.

Describe the solution you'd like

For ConditionalPropertyCallbackContext to have a path value, just like ValidationContext

Describe alternatives you've considered

The only other way to achieve this is looking through all fields within context.parent to find the current field - this is quite complicated

Additional context

This was previously requested before v3 ticket cleanup #3125