Fix typedoc script #223

Job	Run time
build (16.x, ubuntu-latest, bash)	2m 8s
build (16.x, macos-latest, bash)	2m 48s
build (16.x, windows-latest, bash)	3m 31s
build (16.x, windows-latest, powershell)	3m 26s
build (18.x, ubuntu-latest, bash)	2m 34s
build (18.x, macos-latest, bash)	2m 14s
build (18.x, windows-latest, bash)	2m 50s
build (18.x, windows-latest, powershell)	3m 40s
build (19.x, ubuntu-latest, bash)	1m 58s
build (19.x, macos-latest, bash)	2m 18s
build (19.x, windows-latest, bash)	3m 5s
build (19.x, windows-latest, powershell)	2m 52s
	33m 24s

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