Literals: move Case inside the companion #5247

Job	Run time
formatting	23s
test-scala-native (windows-latest)	9m 16s
native-image (macOS-12, default)	3m 55s
test-scala-native (ubuntu-latest)	6m 48s
community-test (11, windows-latest, Scala2)	17m 12s
native-image (ubuntu-latest, default)	3m 30s
test (11, windows-latest)	11m 27s
community-test (11, windows-latest, Scala3)	20m 20s
native-image (ubuntu-latest, musl)	3m 40s
test (11, ubuntu-latest)	8m 55s
community-test (11, windows-latest, Spark)	33m 34s
test (21, windows-latest)	10m 30s
community-test (11, windows-latest, Other)	16m 25s
test (21, ubuntu-latest)	7m 46s
community-test (11, ubuntu-latest, Scala2)	15m 59s
community-test (11, ubuntu-latest, Scala3)	17m 52s
community-test (11, ubuntu-latest, Spark)	28m 36s
community-test (11, ubuntu-latest, Other)	15m 17s
dockerize	0s
	3h 51m 25s

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