HITs: fix inconsistencies from several HITs #1563

Job	Run time
nix	4m 0s
quick-build (supported, ubuntu-latest)	3m 22s
build (supported)	4m 32s
quick-build (latest, ubuntu-latest)	4m 6s
opam-build (supported, ubuntu-latest)	5m 23s
build (latest)	3m 49s
quick-build (dev, ubuntu-latest)	3m 58s
opam-build (8.17, ubuntu-latest)	6m 37s
build (dev, --warnings)	3m 46s
opam-build (latest, ubuntu-latest)	5m 52s
opam-build (dev, ubuntu-latest)	5m 36s
doc-timing	1m 10s
doc-alectryon	15m 45s
doc-coqdoc	1m 12s
coqchk (supported)	1m 48s
doc-dep-graphs	8m 43s
coqchk (latest)	1m 52s
coqchk (dev)	2m 15s
install (supported)	1m 16s
install (latest)	1m 27s
install (dev)	1m 50s
deploy-doc	0s
delete-artifacts	5s
	1h 28m 24s

Provide feedback