fix bing url

Author: Hagellach37

mapswipe_workers/mapswipe_workers/utils/tile_functions.py

@@ -132,8 +132,9 @@ def quadKey_to_Bing_URL(quadKey, api_key):
     """Create a tile image URL linking to a Bing tile server."""
 
     tile_url = (
-        "https://ecn.t0.tiles.virtualearth.net/tiles/",
-        "a{}.jpeg?g=7505&mkt=en-US&token={}".format(quadKey, api_key),
+        "https://ecn.t0.tiles.virtualearth.net/tiles/a{}.jpeg?g=7505&mkt=en-US&token={}".format(  # noqa: E501
+            quadKey, api_key
+        ),
     )
 
     return tile_url