Adapted fluctuation test

lbmpy_walberla_tests/test_walberla_codegen.py

@@ -83,7 +83,7 @@ class WalberlaLbmpyCodegenTest(unittest.TestCase):
 
             # the collision rule of the LB method where the some advanced features
             collision_rule = create_lb_collision_rule(
-                stencil='D3Q19', compressible=True, fluctuating=True,
+                stencil='D3Q19', compressible=True, fluctuating={'seed': 0, 'temperature': 1e-6},
                 method='mrt3', relaxation_rates=[omega_shear, omega_bulk],
                 force_model='guo', force=force_field.center_vector,
                 optimization={'cse_global': False}