Pytket-quantinuum

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* Updated pytket_pecos version requirement to 0.1.13.
* Fix handling of results in local emulator with non-default classical
registers.
* Add WASM support to local emulators.
* Add multithreading support to local emulators, via new ``multithreading``
keyword argument passed to ``process_circuits()``.

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* Updated pytket version requirement to 1.24.
* Python 3.12 support added, 3.9 dropped.
* pytket_pecos dependency updated to 0.1.9.

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* Updated pytket version requirement to 1.23.
* ``QuantinuumBackend.cost()`` now raises an error if the ``syntax_checker``
argument doesn't correspond to the device's reported syntax checker or if it
specifies a device that isn't a syntax checker; and the method returns 0 if
called on syntax-checker backends.
* Add partial support for local emulator backends, if installed with the
``pecos`` option.

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* Updated pytket version requirement to 1.22.
* Add ``QuantinuumConfigCredentialStorage`` for caching API tokens in local pytket
configuration file.
* Add an additonal ``RemoveRedundancies`` pass to the default passes for levels 1 and 2 to remove Rz gates before measurement.

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* Updated pytket version requirement to 1.21.

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* Don't include ``SimplifyInitial`` in default passes; instead make it an option
to ``process_circuits()``.
* Fix: set default two-qubit gate when compilation config is provided without
specifying one.