Reduce threshold for NIRReflectance test comparison

Some CI runners seem to be a little more off than others

Author: djhoese

satpy/tests/test_modifiers.py

@@ -310,7 +310,7 @@ def test_basic_call(self, tmp_path, include_sunz, include_co2, exp_res):
         assert res.attrs["units"] == "%"
         assert res.attrs["sun_zenith_threshold"] == 85.0
         assert res.attrs["sun_zenith_masking_limit"] == 88.0
-        np.testing.assert_allclose(res_np, exp_res, atol=1e-6)
+        np.testing.assert_allclose(res_np, exp_res, atol=2e-6)
 
     @pytest.mark.parametrize(
         "comp_kwargs",