Update scalafmt-core to 3.8.6 (#376)

Co-authored-by: scala-steward <scala-steward>

Author: softwaremill-ci

.scalafmt.conf

@@ -1,4 +1,4 @@
-version = 3.8.5
+version = 3.8.6
 maxColumn = 120
 runner.dialect = scala213
 fileOverride {