Address points in buildings layer sometimes missing min_zoom

[nvkelso]

Occasionally the address points exported in the buildings layer are missing min_zoom props.

Besides the vanilla address nodes in OSM, Tilezen harvests address points in queries.yaml off ways as well via this transform.py logic:

• https://github.com/tilezen/vector-datasource/blob/2eb4486761062f67d473424e6526d1ebf7ba7643/vectordatasource/transform.py#L2505-L2578

        # we're only interested in a very few properties for
        # address points.
        label_properties = dict(
            addr_housenumber=addr_housenumber,
            kind='address')

We need to also set min_zoom=17 in that section, like:

        # we're only interested in a very few properties for
        # address points.
        label_properties = dict(
            addr_housenumber=addr_housenumber,
            min_zoom=17,
            kind='address')

[nvkelso]

PR is https://github.com/tilezen/vector-datasource/pull/2032.

[nvkelso]

Relates to https://github.com/tilezen/tilequeue/pull/402.