Add a vector tile source to a Mapbox GL or Maplibre GL map

Usage

add_vector_source(map, id, url = NULL, tiles = NULL, promote_id = NULL, ...)

map: A map object created by the mapboxgl or maplibre function.
id: A unique ID for the source.
url: A URL pointing to the vector tile source.
tiles: A vector of tile URLs, typically in the format "https://example.com/{z}/{x}/{y}.mvt" or similar.
promote_id: An optional property name to use as the feature ID. This is required for hover effects on vector tiles.
...: Additional arguments to be passed to the JavaScript addSource method.

The modified map object with the new source added.