Update dependency scalafmt to v3.9.9 (#421)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.scalafmt.conf

@@ -1,3 +1,3 @@
-version = "3.9.8"
+version = "3.9.9"
 runner.dialect = scala213
 maxColumn = 120