Remove unintended spaces

Sorry, I forgot to remove the spaces.

qiskit_nature/second_q/circuit/library/ansatzes/ucc.py

@@ -390,7 +390,7 @@ def _check_ucc_configuration(self, raise_on_failure: bool = True) -> bool:
                         f"(alpha, beta) particles."
                     )
                 return False
-                
+
             if any(n > self.num_spatial_orbitals for n in self.num_particles):
                 if raise_on_failure:
                     raise ValueError(