Compatibility with qutip v5 #142

Job	Run time
Codestyle and Main Tests (Python 3.12 on ubuntu-24.04)	28s
Oldest supported Python (Python 3.10 on ubuntu-24.04)	1m 31s
Windows (Python 3.12 on windows-latest)	5m 25s
MacOS (Python 3.12 on macos-latest)	3m 54s
Notebook 1 (State-to-State) (Python 3.12 on ubuntu-24.04)	4m 55s
Notebook 2 (RWA) (Python 3.12 on ubuntu-24.04)	4m 9s
Notebook 3 (Non-Hermitian) (Python 3.12 on ubuntu-24.04)	2m 11s
Notebook 4 (Density Matrix) (Python 3.12 on ubuntu-24.04)	1m 36s
Notebook 5 (Quantum Gate) (Python 3.12 on ubuntu-24.04)	5m 43s
Notebook 6 (3 States) (Python 3.12 on ubuntu-24.04)	1m 54s
Notebook 7 (Perfect Entanglers) (Python 3.12 on ubuntu-24.04)	4m 30s
Notebook 8 (Ensemble Optimization) (Python 3.12 on ubuntu-24.04)	1m 44s
Notebook 9 (NumPy) (Python 3.12 on ubuntu-24.04)	1m 35s
	39m 35s

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