Serving tiles from a url on mvt-tippecanoe is not working

[doublebyte1]

Description
The docs state that the mvt-tippecanoe provider can serve tiles from a data path on disk, or an url. However, when serving tippecanoe tiles from a url, it is not possible to publish tiles or generate tile metadata in the tilejson specification,

Steps to Reproduce

• Render tippecanoe tiles and place them on a web server or a bucket
• Configure pygeoapi to publish these tiles

            - type: tile
              name: MVT-tippecanoe
              data: http://localhost:3000/data/lakes/{z}/{x}/{y}.pbf
              options:
                bounds: [[-124.953634,-16.536406],[109.929807,66.969298]]
                zoom:
                    min: 0
                    max: 11
                schemes:
                    - WorldCRS84Quad
              format: 
                    name: pbf
                    mimetype: application/vnd.mapbox-vector-tile

• Retrieve a tile: http://localhost:5000/collections/lakes/tiles/WorldCRS84Quad/0/0/0?f=mvt
• Retrieve metadata in the tilejson format: http://localhost:5000/collections/lakes/tiles/WorldCRS84Quad/metadata?f=tilejson

Expected behavior
Both requests should return status code: 200.

[doublebyte1]

#1507 addresses serving tiles from an url, but the metadata part is still not working. Maybe @PascalLike can have a look? (: