Update sbt-scalafmt to 2.5.6#398

mergify[bot] merged 1 commit intoscalapb:masterscalapb/protobuf-scala-runtime:masterfrom

scala-steward:update/sbt-scalafmt-2.5.6scala-steward/protobuf-scala-runtime:update/sbt-scalafmt-2.5.6Copy head branch name to clipboard