Bump crazy-max/ghaction-github-pages from 2 to 4 #276

Job	Run time
no_std	31s
build (ubuntu, stable, locked, true)	13m 17s
build (windows, stable, locked, false)	22m 15s
build (macos, stable, locked, false)	20m 10s
miri	1m 22s
build (ubuntu, nightly, locked, false)	19m 13s
build (ubuntu, beta, locked, false)	12m 43s
build (ubuntu, stable, latest, false)	14m 2s
build (ubuntu, stable, minimal, false)	11m 56s
fuzz	14m 10s
features	24m 19s
deploy	0s
	2h 33m 58s

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