Update sbt-scalafmt to 2.4.2

Author: scala-steward

project/plugins.sbt

@@ -7,7 +7,7 @@ addSbtPlugin("ch.epfl.scala" % "sbt-scalajs-bundler" % "0.18.0")
 
 addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.3")
 
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.0")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.2")
 
 addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.1.13")