GPU tests failing for qibo.quantum_info.Clifford.to_circuit

[BrunoLiegiBastonLiegi]

A bunch of tests of the Clifford object are failing on GPU:

FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-2-AG04-1] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-2-AG04-10] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-2-BM20-1] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-2-BM20-10] - RuntimeError: Failed to reduce CNOT cost.
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-3-AG04-1] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-3-AG04-10] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-3-BM20-1] - RuntimeError: Failed to reduce CNOT cost.
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-3-BM20-10] - RuntimeError: Failed to reduce CNOT cost.
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-10-AG04-1] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-10-AG04-10] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-50-AG04-1] - AssertionError: 
FAILED tests/test_quantum_info_clifford.py::test_clifford_to_circuit[qibojit-cupy-50-AG04-10] - AssertionError: