Merge pull request #293 from scala-steward/update/scalafmt-core-3.9.1

Update scalafmt-core to 3.9.1

Author: Philippus

.scalafmt.conf

@@ -1,4 +1,4 @@
-version = 3.9.0
+version = 3.9.1
 runner.dialect = scala213
 maxColumn = 100
 newlines.source = keep