Merge pull request #394 from scala-steward/update/scalafmt-core-3.9.9

Update scalafmt-core to 3.9.9

Author: eed3si9n

.scalafmt.conf

@@ -1,4 +1,4 @@
-version = "3.9.8"
+version = "3.9.9"
 project.git = true
 project.layout = StandardConvention
 runner.dialect = scala212source3