Correctly provide EditorConfig property types for Ktlint #1366

Job	Run time
spotlessCheck assemble testClasses	1m 40s
build (maven, 11, ubuntu-latest)	6m 14s
build (maven, 17, ubuntu-latest)	5m 46s
build (maven, 21, ubuntu-latest)	6m 13s
build (gradle, 11, ubuntu-latest)	6m 32s
build (gradle, 17, ubuntu-latest)	8m 51s
build (gradle, 21, ubuntu-latest)	8m 14s
build (maven, 11, windows-latest)	9m 10s
build (gradle, 17, windows-latest)	13m 6s
build (npm, 11, ubuntu-latest)	6m 5s
build (shfmt, 11, ubuntu-latest, v3.8.0)	1m 48s
	1h 13m 39s

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