Update doxygen (cont'd) #4217

Job	Run time
LLVM/Clang with Python 3.8	14m 27s
Check example keywords	5s
Build docs	8m 41s
Coverage	49m 23s
intel-oneAPI on Ubuntu, Python 3.8	24m 10s
intel-oneAPI classic on Ubuntu, Python 3.8	28m 45s
macOS with Python 3.8	22m 28s
macOS with Python 3.10	19m 10s
macOS with Python 3.11	34m 40s
Sundials 3 / fmt 7.1	14m 58s
Sundials 4 / fmt 8.1	11m 59s
Sundials 5.8 / fmt 9.1	12m 43s
Sundials 6.4.1 / fmt 10	11m 17s
ubuntu-20.04 with Python 3.8	20m 19s
ubuntu-22.04 with Python 3.8	16m 52s
ubuntu-20.04 with Python 3.10	17m 1s
ubuntu-22.04 with Python 3.10	16m 9s
ubuntu-20.04 with Python 3.11	20m 33s
ubuntu-22.04 with Python 3.11	22m 13s
Windows 2019, MSVC 14.2, Python 3.8	22m 48s
Windows 2019, MSVC 14.2, Python 3.10	20m 11s
Windows 2019, MSVC 14.2, Python 3.11	20m 4s
windows-2022, MSVC 14.1, Python 3.8, fmt 10	43m 51s
windows-2022, MSVC 14.1, Python 3.10, fmt 8.1	31m 26s
windows-2022, MSVC 14.1, Python 3.11, fmt 7.1	24m 38s
windows-2022, MSVC 14.3, Python 3.8, fmt 10	25m 0s
windows-2022, MSVC 14.3, Python 3.10, fmt 8.1	36m 11s
windows-2022, MSVC 14.3, Python 3.11, fmt 7.1	31m 8s
mingw on Windows, Python 3.10	27m 3s
Run Python 3.8 examples on ubuntu-20.04	2m 0s
Run Python 3.10 examples on ubuntu-20.04	1m 38s
Run Python 3.11 examples on ubuntu-20.04	1m 38s
Run Python 3.8 examples on ubuntu-22.04	8m 29s
Run Python 3.10 examples on ubuntu-22.04	9m 59s
Run Python 3.11 examples on ubuntu-22.04	8m 27s
.NET on ubuntu-22.04	1m 39s
.NET on windows-2022	5m 55s
.NET on macos-11	4m 58s
	11h 32m 56s

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