Mthree

Contains updates for Qiskit v1.0.

Breaking Changes

- Had to drop support for Qiskit Direct due to the removal of the `execute` function.

Fixes

- Adds `noexcept` tags to Cython functions returning `void` needed for Cython 3+

- Adds support for Python 3.12

Fixes

- Relax stochastic tests (165) for more robust deployment.

Updates

- Faulty qubits now gives a warning rather than raises (162)

Fixes

- Returning details for multiple circuits passed to `apply_correction` now works (161)

Features

- Splits calibrations into multiple jobs if the number of circuits is above the max supported by the device
- Ignore inoperable qubits reported by the target device.

Updates

- The total number of balanced calibration shots is increased slightly (by at most 1 per circuit) so that the precision requested by the `shots` argument is always faithfully met.

Enhancements

- No longer raise `M3Error` for faulty qubits that are not being used in the mitigation itself (153).
- Speed up column normalization calculation when doing the iterative method and a small Hamming distance correction (154).

Fixes

`final_measurement_mapping` was returning invalid mappings with conditionals due to legacy behavior that I forget to remove