`insights_buffer_days` is passed to `tap-facebook` as boolean rather than integer
In https://gitlab.com/meltano/meltano/-/merge_requests/1926, I accidentally changed the `kind` of `tap-facebook`'s `insights_buffer_days` setting from `integer` to `boolean`: https://gitlab.com/meltano/meltano/blob/master/src/meltano/core/bundle/discovery.yml#L462
This is incorrect, and breaks this feature.
issue