Always run artifact upload step in output-pdf #577

Job	Run time
sync / sync	4m 1s
check / Build docs (latex)	6m 7s
check / Lint translations	46s
check / Build docs (epub)	5m 57s
check / Check for zero-width space characters	8s
check / Build docs (html)	6m 23s
check / Build docs (pdf)	12m 30s
	35m 52s

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