Deprecation warning in `local-testing-mode`

[kaelynj]

URL to the relevant documentation

https://docs.quantum.ibm.com/guides/local-testing-mode

Select all that apply

• [ ] typo
• [x] code bug
• [ ] out-of-date content
• [ ] broken link
• [ ] other

Describe the fix.

In the penultimate cell of the "local testing mode" docs page, there is a deprecation warning that pops up when calling AerSimulator.from_backend() from a hardware backend provided through qiskit-ibm-runtime:

DeprecationWarning:` The class ``qiskit.providers.models.backendconfiguration.QasmBackendConfiguration`` is deprecated as of qiskit 1.2. It will be removed in the 2.0 release. The models in ``qiskit.providers.models`` are part of the deprecated `BackendV1` workflow and no longer necessary for `BackendV2`. If a user workflow requires these representations it likely relies on deprecated functionality and should be updated to use `BackendV2`.
  aer = AerSimulator.from_backend(real_backend)

I assume this has to do with how aer is constructing backends, but need to investigate further what the fix is.