Correct lynting error

src/modules/solvers/QAOA.py

@@ -156,7 +156,7 @@ def run(self, mapped_problem: any, device_wrapper: any, config: Config, **kwargs
                             "This may lead to an error later in the run.")
         else:
             j = np.real(j)
-        
+
         # set up the problem
         n_qubits = j.shape[0]