build, doc: use new api doc tooling #1435

Job	Run time
Build slim tarball	1m 31s
aarch64-linux: with shared libraries	2h 26m 18s
x86_64-darwin: with shared libraries	45m 35s
aarch64-darwin: with shared libraries	2h 8m 27s
x86_64-linux: with shared libraries	2h 32m 19s
	7h 54m 10s

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