CI: Check ReStructuredText formatting #68

Job	Run time
macos (macos-13, x86_64)	54s
emscripten (ubuntu-22.04, wasm32-unknown-emscripten)	57s
linux (ubuntu-22.04, x86_64)	23s
macos (macos-14, aarch64)	27s
musllinux (ubuntu-22.04, x86_64)	56s
linux (ubuntu-22.04, x86)	1s
musllinux (ubuntu-22.04, x86)	56s
sdist	15s
linux (ubuntu-22.04, aarch64)	48s
musllinux (ubuntu-22.04, aarch64)	58s
windows (windows-latest, x64)	53s
linux (ubuntu-22.04, armv7)	43s
musllinux (ubuntu-22.04, armv7)	56s
windows (windows-latest, x86)	51s
linux (ubuntu-22.04, s390x)	25s
linux (ubuntu-22.04, ppc64le)	26s
Release	1s
	10m 50s

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