Fix for Sundials 6.6 behavior changes #4347

Job	Run time
Run MATLAB Test Script	10m 49s
LLVM/Clang with Python 3.8	21m 25s
ubuntu-20.04 with Python 3.8	20m 48s
ubuntu-22.04 with Python 3.8	15m 51s
ubuntu-20.04 with Python 3.10	18m 10s
ubuntu-22.04 with Python 3.10	16m 25s
ubuntu-20.04 with Python 3.11	20m 28s
ubuntu-22.04 with Python 3.11	18m 31s
macOS with Python 3.8	20m 50s
macOS with Python 3.10	19m 57s
macOS with Python 3.11	20m 3s
Coverage	46m 46s
Check example keywords	5s
Build docs	8m 2s
Sundials 3 / fmt 7.1	12m 29s
Sundials 4 / fmt 8.1	17m 11s
Sundials 5.8 / fmt 9.1	10m 49s
Sundials 6.4.1 / fmt 10	11m 6s
Sundials 6.6 / fmt 10	14m 19s
windows-2022, MSVC 14.1, Python 3.8, fmt 10	26m 47s
windows-2022, MSVC 14.1, Python 3.10, fmt 8.1	30m 33s
windows-2022, MSVC 14.1, Python 3.11, fmt 7.1	31m 0s
windows-2022, MSVC 14.3, Python 3.8, fmt 10	38m 32s
windows-2022, MSVC 14.3, Python 3.10, fmt 8.1	30m 28s
windows-2022, MSVC 14.3, Python 3.11, fmt 7.1	31m 17s
intel-oneAPI on Ubuntu, Python 3.8	25m 51s
intel-oneAPI classic on Ubuntu, Python 3.8	29m 54s
Windows 2019, MSVC 14.2, Python 3.8	19m 54s
Windows 2019, MSVC 14.2, Python 3.10	22m 34s
Windows 2019, MSVC 14.2, Python 3.11	19m 33s
mingw on Windows, Python 3.10	33m 55s
Run Python 3.8 examples on ubuntu-20.04	16m 33s
Run Python 3.10 examples on ubuntu-20.04	16m 38s
Run Python 3.11 examples on ubuntu-20.04	16m 11s
Run Python 3.8 examples on ubuntu-22.04	14m 43s
Run Python 3.10 examples on ubuntu-22.04	19m 2s
Run Python 3.11 examples on ubuntu-22.04	14m 42s
.NET on ubuntu-22.04	1m 25s
.NET on windows-2022	6m 27s
.NET on macos-11	3m 46s
	12h 53m 49s

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