bump: sbt-scalafmt 2.4.6 (was 2.4.3) (#169)

Author: scala-steward

project/plugins.sbt

@@ -1,5 +1,5 @@
 addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.1.2")
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.3")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")
 addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.6.5")
 addSbtPlugin("com.dwijnand" % "sbt-dynver" % "4.1.1")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.10")