Implement a minimizer for INLA #1868

Job	Run time
ubuntu (ubuntu-latest, 3.11, tests/statespace/core/test_statespace.py)	33s
ubuntu (ubuntu-latest, 3.11, tests/statespace/filters/test_kalman_filter.py)	49s
ubuntu (ubuntu-latest, 3.11, tests --ignore tests/model --ignore tests/statespace --ignore tests/...	34s
windows (windows-latest, 3.12, tests/statespace/filters/test_kalman_filter.py)	36s
ubuntu (ubuntu-latest, 3.11, tests/model)	35s
windows (windows-latest, 3.12, tests/statespace --ignore tests/statespace/core/test_statespace.py...	38s
windows (windows-latest, 3.12, tests/statespace/core/test_statespace.py)	36s
windows (windows-latest, 3.12, tests/model)	36s
ubuntu (ubuntu-latest, 3.11, tests/statespace --ignore tests/statespace/core/test_statespace.py -...	40s
windows (windows-latest, 3.12, tests/distributions)	38s
windows (windows-latest, 3.12, tests --ignore tests/model --ignore tests/statespace --ignore test...	36s
ubuntu (ubuntu-latest, 3.11, tests/distributions)	29s
all_tests	3s
	7m 23s

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