Fix: resolve pre-commit issues and add missing annotations

Author: Liu Keyu

src/mqt/predictor/rl/helper.py

@@ -20,7 +20,7 @@
 from qiskit.circuit import ClassicalRegister, QuantumRegister, Instruction, Qubit
 from qiskit.transpiler import PassManager, Target
 from qiskit.dagcircuit import DAGCircuit
-from qiskit_ibm_transpiler.ai.routing import AIRouting
+from qiskit_ibm_transpiler.ai.routing import AIRouting # type: ignore
 
 from mqt.predictor.utils import calc_supermarq_features
 from mqt.predictor.rl.actions import Action