fix(docs.yml): Upgrade Hugo version (#266) #1011

Job	Run time
test (ubuntu-latest, 26.3, false)	28s
test (ubuntu-latest, 27.2, false)	28s
test (ubuntu-latest, 28.2, false)	28s
test (ubuntu-latest, 29.4, false)	41s
test (macos-latest, 28.2, false)	1m 9s
test (macos-latest, 29.4, false)	1m 26s
test (windows-latest, 26.3, false)	4m 2s
test (windows-latest, 27.2, false)	1m 6s
test (windows-latest, 28.2, false)	1m 19s
test (windows-latest, 29.4, false)	1m 56s
test (ubuntu-latest, snapshot, true)	26s
test (macos-latest, snapshot, true)	1m 3s
test (windows-latest, snapshot, true)	1m 12s
	15m 44s

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