Fix state prep operation decomposition with `LightningQubit` #4862

Job	Run time
ubuntu-latest - Pure Python wheels - lightning_gpu (Python 3.9)	10s
ubuntu-latest - Pure Python wheels - lightning_kokkos (Python 3.9)	16s
ubuntu-latest - Pure Python wheels - lightning_qubit (Python 3.9)	16s
upload-pypi (lightning_gpu)	16s
upload-pypi (lightning_kokkos)	16s
upload-pypi (lightning_qubit)	20s
	1m 34s

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