Wildcat improvements #1584

Job	Run time
quick-build (supported, ubuntu-latest)	3m 15s
nix	3m 27s
quick-build (latest, ubuntu-latest)	3m 17s
quick-build (dev, ubuntu-latest)	3m 21s
build (supported)	3m 42s
build (latest)	4m 28s
opam-build (supported, ubuntu-latest)	5m 17s
opam-build (8.17, ubuntu-latest)	5m 21s
opam-build (latest, ubuntu-latest)	5m 11s
opam-build (dev, ubuntu-latest)	5m 41s
build (dev, --warnings)	4m 59s
doc-coqdoc	1m 14s
doc-alectryon	16m 8s
doc-dep-graphs	11m 10s
coqchk (supported)	2m 8s
doc-timing	1m 14s
coqchk (latest)	1m 41s
install (supported)	1m 30s
coqchk (dev)	2m 7s
install (latest)	1m 15s
install (dev)	1m 10s
deploy-doc	0s
delete-artifacts	9s
	1h 27m 45s

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