Update scalafmt-core to 3.8.1 #452

Job	Run time
build (ubuntu-latest)	4m 45s
scripted (ubuntu-latest, 1.2.8)	7m 18s
build (macos-latest)	6m 21s
scripted (ubuntu-latest, 1.3.13)	6m 38s
build (windows-latest)	5m 1s
scripted (ubuntu-latest, project)	6m 6s
scripted (macos-latest, 1.2.8)	12m 43s
scripted (macos-latest, 1.3.13)	13m 24s
scripted (macos-latest, project)	10m 16s
scripted (windows-latest, 1.2.8)	10m 33s
scripted (windows-latest, 1.3.13)	8m 36s
scripted (windows-latest, project)	7m 53s
ci-passed	1s
	1h 39m 35s

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