Qiskit / qiskit-ibm-runtime / 39575360413

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main: 91%

Pull #3454

github

Make `qiskit-noise-learning` an optional dependency (#3496)

### Summary
Make `qiskit-noise-learning` an optional dependency with a `HAS_QNL`
lazy import.

### Details and comments

Closes #3494

### AI/LLM disclosure

- [x] I didn't use LLM tooling, or only used it privately.
- [ ] I used the following tool to help write this PR description:
- [ ] I used the following tool to generate or modify code:

42 of 58 new or added lines in 7 files covered. (72.41%)

8735 of 9613 relevant lines covered (90.87%)

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