Fix failing test after API change in MultiControlledX

[joeycarter]

Context: The input argument control_wires was recently removed from qml.MultiControlledX in PennyLaneAI/pennylane#6832. This API change resulted in a failure in the Catalyst test TestGateAliases.test_control_aliases in the "Check CPL latest/latest/latest" workflow.

For reference, the call signature of qml.MultiControlledX changed from

qml.MultiControlledX(control_wires, wires, control_values, work_wires)

to

qml.MultiControlledX(wires, control_values, work_wires)

Description of the Change: Update the failing test to use the new call signature of qml.MultiControlledX. Also, prefer to explicitly pass in the wire index or list of wire indices by keyword argument with wires=..., rather than as positional arguments, to hopefully avoid similar issues in the future.

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