update a few scoped baseline

- that were affected by the new `geo.center` logic

Author: etpinard

test/image/baselines/geo_canadian-cites.png

@@ -95,6 +95,9 @@
                     70
                 ]
             },
+            "center": {
+                "lat": 57
+            },
             "showrivers": true,
             "rivercolor": "#fff",
             "showlakes": true,

test/image/baselines/geo_europe-bubbles.png

@@ -131,6 +131,9 @@
                     40,
                     70
                 ]
+            },
+            "center": {
+                "lat": 57
             }
         },
         "width": 800,