fixed arcticdem pytest to match new filename format for file directories

Author: jpswinski

tests/test_arcticdem.py

@@ -15,7 +15,7 @@ def test_vrt(self, domain, organization):
         rqst = {"samples": {"asset": "arcticdem-mosaic"}, "coordinates": [[-178.0,51.7]]}
         rsps = sliderule.source("samples", rqst)
         assert abs(rsps["samples"][0][0]["value"] - 80.713500976562) < 0.001
-        assert rsps["samples"][0][0]["file"] == 'pgc-opendata-dems/arcticdem/mosaics/v3.0/2m/70_09/70_09_2_1_2m_v3.0_reg_dem.tif'
+        assert rsps["samples"][0][0]["file"] == '/vsis3/pgc-opendata-dems/arcticdem/mosaics/v3.0/2m/70_09/70_09_2_1_2m_v3.0_reg_dem.tif'
 
     def test_nearestneighbour(self, domain, asset, organization):
         icesat2.init(domain, organization=organization)