use deserialize in Censored.from_dict #1873

Job	Run time
ubuntu (ubuntu-latest, 3.11, tests/statespace --ignore tests/statespace/core/test_statespace.py -...	7m 20s
ubuntu (ubuntu-latest, 3.11, tests/statespace/core/test_statespace.py)	6m 16s
ubuntu (ubuntu-latest, 3.11, tests/distributions)	6m 52s
ubuntu (ubuntu-latest, 3.11, tests --ignore tests/model --ignore tests/statespace --ignore tests/...	14m 8s
ubuntu (ubuntu-latest, 3.11, tests/model)	8m 53s
ubuntu (ubuntu-latest, 3.11, tests/statespace/filters/test_kalman_filter.py)	2m 28s
windows (windows-latest, 3.12, tests/distributions)	11m 10s
windows (windows-latest, 3.12, tests/statespace/core/test_statespace.py)	10m 9s
windows (windows-latest, 3.12, tests --ignore tests/model --ignore tests/statespace --ignore test...	23m 33s
windows (windows-latest, 3.12, tests/statespace --ignore tests/statespace/core/test_statespace.py...	14m 26s
windows (windows-latest, 3.12, tests/model)	13m 28s
windows (windows-latest, 3.12, tests/statespace/filters/test_kalman_filter.py)	5m 4s
all_tests	3s
	2h 3m 50s

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