Address c_if and Permutation deprecations in Qiskit 1.3

The `c_if` usage on conditional gates has been replaced with `if_test`
blocks around those gates.

The `Permutation` instances have been replaced with `PermutationGate`
instances that work the same way for the cases in Experiments.

qiskit_experiments/library/tomography/tomography_experiment.py

@@ -16,7 +16,7 @@
 from typing import Union, Optional, Iterable, List, Tuple, Sequence
 from itertools import product
 from qiskit.circuit import QuantumCircuit, Instruction, ClassicalRegister, Clbit
-from qiskit.circuit.library import Permutation
+from qiskit.circuit.library import PermutationGate
 from qiskit.providers.backend import Backend
 from qiskit.quantum_info.operators.base_operator import BaseOperator
 
@@ -278,7 +278,7 @@ def _permute_circuit(self) -> QuantumCircuit:
             prep_qargs = list(self._prep_indices)
             if len(self._prep_indices) != total_qubits:
                 prep_qargs += [i for i in range(total_qubits) if i not in self._prep_indices]
-            perm_circ.append(Permutation(total_qubits, prep_qargs).inverse(), range(total_qubits))
+            perm_circ.append(PermutationGate(prep_qargs).inverse(), range(total_qubits))
 
         # Apply original circuit
         if total_clbits:
@@ -291,6 +291,6 @@ def _permute_circuit(self) -> QuantumCircuit:
             meas_qargs = list(self._meas_indices)
             if len(self._meas_indices) != total_qubits:
                 meas_qargs += [i for i in range(total_qubits) if i not in self._meas_indices]
-            perm_circ.append(Permutation(total_qubits, meas_qargs), range(total_qubits))
+            perm_circ.append(PermutationGate(meas_qargs), range(total_qubits))
 
         return perm_circ

test/library/tomography/tomo_utils.py

@@ -52,8 +52,10 @@ def teleport_circuit(flatten_creg=True):
     teleport.measure(0, creg[0])
     teleport.measure(1, creg[1])
     # Conditionals
-    teleport.z(2).c_if(creg[0], 1)
-    teleport.x(2).c_if(creg[1], 1)
+    with teleport.if_test((creg[0], True)):
+        teleport.z(2)
+    with teleport.if_test((creg[1], True)):
+        teleport.x(2)
     return teleport
 
 
@@ -76,8 +78,10 @@ def teleport_bell_circuit(flatten_creg=True):
     teleport.h(0)
     teleport.measure(0, creg[0])
     teleport.measure(1, creg[1])
-    teleport.z(2).c_if(creg[0], 1)
-    teleport.x(2).c_if(creg[1], 1)
+    with teleport.if_test((creg[0], True)):
+        teleport.z(2)
+    with teleport.if_test((creg[1], True)):
+        teleport.x(2)
     return teleport