Merge pull request #98 from scalacenter/update/scalafmt-core-3.8.4

Update scalafmt-core to 3.8.4

Author: tgodzik

.scalafmt.conf

@@ -1,4 +1,4 @@
-version = "3.8.3"
+version = "3.8.4"
 runner.dialect = scala213
 maxColumn = 100
 docstrings.style = Asterisk