Bump prettier from 2.8.8 to 3.5.1 #125

Job	Run time
Build (jekyll gem) (3.9, ubuntu-latest, 2.7)	1m 12s
Build (github-pages gem)	40s
Test CSS and JS (18.x)	8s
Build (jekyll gem) (3.9, ubuntu-latest, 3.1)	21s
Build (jekyll gem) (3.9, macos-latest, 2.7)	1m 9s
Build (jekyll gem) (3.9, macos-latest, 3.1)	24s
Build (jekyll gem) (3.9, windows-latest, 2.7)	4m 52s
Build (jekyll gem) (3.9, windows-latest, 3.1)	2m 49s
Build (jekyll gem) (4.3, ubuntu-latest, 2.7)	1m 14s
Build (jekyll gem) (4.3, ubuntu-latest, 3.1)	32s
Build (jekyll gem) (4.3, macos-latest, 2.7)	1m 40s
Build (jekyll gem) (4.3, macos-latest, 3.1)	36s
Build (jekyll gem) (4.3, windows-latest, 2.7)	5m 2s
Build (jekyll gem) (4.3, windows-latest, 3.1)	2m 32s
	23m 11s

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