build(deps): bump peaceiris/actions-gh-pages from 3 to 4 #5

Job	Run time
test (ubuntu-latest, 27.2, false)	42s
test (ubuntu-latest, 28.2, false)	45s
test (ubuntu-latest, 29.3, false)	44s
test (macos-latest, 27.2, false)	2m 22s
test (macos-latest, 28.2, false)	1m 49s
test (macos-latest, 29.3, false)	2m 21s
test (windows-latest, 27.2, false)	1m 12s
test (windows-latest, 28.2, false)	1m 16s
test (windows-latest, 29.3, false)	1m 12s
test (ubuntu-latest, snapshot, true)	35s
test (macos-latest, snapshot, true)	1m 55s
test (windows-latest, snapshot, true)	37s
	15m 30s

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