fix: migrate stamen map references to stadia maps raster api (#321)

### Issue
#291

### What?

- Update Stamen Maps to Stadia Maps 
### Why?

- Addressed this changed in a [previous
PR](#301) but didn't
realize that I needed to update the raster api as well

### Testing?

- Local testing on vscode without deploying to dev

raster_api/runtime/src/templates/stac-viewer.html

@@ -318,14 +318,11 @@
         'toner-lite': {
           type: 'raster',
           tiles: [
-            'https://stamen-tiles-a.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}.png',
-            'https://stamen-tiles-b.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}.png',
-            'https://stamen-tiles-c.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}.png',
-            'https://stamen-tiles-d.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}.png'
+            'https://tiles.stadiamaps.com/tiles/stamen_toner_lite/{z}/{x}/{y}.png'
           ],
           tileSize: 256,
           attribution:
-            'Map tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. Data by <a href="http://openstreetmap.org">OpenStreetMap</a>, under <a href="http://www.openstreetmap.org/copyright">ODbL</a>.'
+            '&copy; <a href="https://stadiamaps.com/" target="_blank">Stadia Maps</a> &copy; <a href="https://www.stamen.com/" target="_blank">Stamen Design</a> &copy; <a href="https://openmaptiles.org/" target="_blank">OpenMapTiles</a> &copy; <a href="https://www.openstreetmap.org/copyright/" target="_blank">OpenStreetMap</a>'
         }
       },
       layers: [