👌 IMPROVE: MathJax 4 compatibility (Sphinx 9) #2057

Job	Run time
pre-commit	13s
Check myst-docutils install (0.22)	12s
Check myst-docutils install (0.21)	11s
Check myst-docutils install (0.20)	14s
pytest: py3.12, sphinx>=9,<10, on ubuntu-latest	36s
pytest: py3.11, sphinx>=8,<9, on ubuntu-latest	35s
pytest: py3.11, sphinx>=9,<10, on ubuntu-latest	31s
pytest: py3.14, sphinx>=8,<9, on ubuntu-latest	30s
pytest: py3.14, sphinx>=9,<10, on windows-latest	1m 33s
pytest: py3.12, sphinx>=8,<9, on ubuntu-latest	32s
pytest: py3.13, sphinx>=9,<10, on ubuntu-latest	38s
pytest: py3.14, sphinx>=9,<10, on ubuntu-latest	29s
pytest: py3.13, sphinx>=8,<9, on ubuntu-latest	39s
pytest: py3.11, sphinx>=8,<9, on windows-latest	1m 8s
check	4s
Publish myst-parser to PyPi	0s
Publish myst-docutils to PyPi	0s
	8m 5s

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