LaTeX: fix #13007 #585

Job	Run time
Docutils HEAD	3m 4s
Oldest supported	2m 59s
Windows	5m 18s
Python 3.10 (Docutils 0.20)	2m 59s
Coverage	0s
Python 3.10 (Docutils 0.21)	3m 9s
Python 3.11 (Docutils 0.20)	2m 37s
Python ${{ matrix.python }} (Docutils ${{ matrix.docutils }})	0s
Python 3.11 (Docutils 0.21)	2m 54s
Python 3.12 (Docutils 0.20)	3m 17s
Python 3.12 (Docutils 0.21)	3m 27s
Python ${{ matrix.python }} (Docutils ${{ matrix.docutils }}; free-threaded)	0s
Python 3.13 (Docutils 0.20)	2m 54s
Python 3.13 (Docutils 0.21)	2m 55s
LaTeX	4m 33s
	40m 6s

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