[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

tests/test_grid.py

@@ -46,7 +46,7 @@ def test_grid_construction_against_salem(dummy_dataset, dummy_salem):
         ('polar_stereographic_1', 'polar_stereographic'),
         ('polar_stereographic_2', 'polar_stereographic'),
         ('lambert_conformal', 'lambert_conformal_conic'),
-        ('mercator', 'mercator')
+        ('mercator', 'mercator'),
     ],
     indirect=True,
 )