Update transpiler passes to not use deprecated features #2350
Description
What is the expected feature or enhancement?
Users have reported deprecation warnings such as:
qiskit_ibm_runtime/transpiler/passes/scheduling/dynamical_decoupling.py:547: DeprecationWarning: The property ``qiskit.dagcircuit.dagcircuit.DAGCircuit.unit`` is deprecated as of Qiskit 1.3.0. It will be removed in Qiskit 3.0.0.
block_idx, idle_after, Delay(tau, self._dag.unit), qubit
and
qiskit_ibm_runtime/transpiler/passes/scheduling/dynamical_decoupling.py:570: DeprecationWarning: The property ``qiskit.dagcircuit.dagcircuit.DAGCircuit.unit`` is deprecated as of Qiskit 1.3.0. It will be removed in Qiskit 3.0.0.
block_idx, t_start, Delay(time_interval, self._block_dag.unit), qubit
While these features haven't been removed in 2.0, there is an alternative in place and it makes sense to update the code as soon as possible to avoid unnecessary noise and to make the transition to 3.0 smoother.
Acceptance criteria