Update various examples to use the Mapbox v4-API

examples/min-max-resolution.js

@@ -4,6 +4,7 @@ import TileLayer from '../src/ol/layer/Tile.js';
 import OSM from '../src/ol/source/OSM.js';
 import TileJSON from '../src/ol/source/TileJSON.js';
 
+const key = 'pk.eyJ1IjoiYWhvY2V2YXIiLCJhIjoiY2pzbmg0Nmk5MGF5NzQzbzRnbDNoeHJrbiJ9.7_-_gL8ur7ZtEiNwRfCy7Q';
 
 /**
  * Create the map.
@@ -17,7 +18,7 @@ const map = new Map({
     }),
     new TileLayer({
       source: new TileJSON({
-        url: 'https://api.tiles.mapbox.com/v3/mapbox.natural-earth-hypso-bathy.json?secure',
+        url: 'https://api.tiles.mapbox.com/v4/mapbox.natural-earth-hypso-bathy.json?secure&access_token=' + key,
         crossOrigin: 'anonymous'
       }),
       minResolution: 2000,