Replace use of deprecated numpy.bool8. (#45)

Author: cqc-alec

pytket/extensions/qiskit/backends/aer.py

@@ -685,8 +685,8 @@ def _process_model(noise_model: NoiseModel, gate_set: Set[OpType]) -> dict:
 def _sparse_to_zx_tup(
     pauli: QubitPauliString, n_qubits: int
 ) -> Tuple[np.ndarray, np.ndarray]:
-    x = np.zeros(n_qubits, dtype=np.bool8)
-    z = np.zeros(n_qubits, dtype=np.bool8)
+    x = np.zeros(n_qubits, dtype=np.bool_)
+    z = np.zeros(n_qubits, dtype=np.bool_)
     for q, p in pauli.map.items():
         i = _default_q_index(q)
         z[i] = p in (Pauli.Z, Pauli.Y)
@@ -698,7 +698,7 @@ def _qubitpauliop_to_sparsepauliop(
     operator: QubitPauliOperator, n_qubits: int
 ) -> SparsePauliOp:
     n_ops = len(operator._dict)
-    table_array = np.zeros((n_ops, 2 * n_qubits), dtype=np.bool8)
+    table_array = np.zeros((n_ops, 2 * n_qubits), dtype=np.bool_)
     coeffs = np.zeros(n_ops, dtype=np.float64)
 
     for i, (term, coeff) in enumerate(operator._dict.items()):