Update sbt-scalafmt to 2.4.3 (#359)

Author: scala-steward

project/plugins.sbt

@@ -2,6 +2,6 @@ addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.6.0")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.1.0")
 addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.7")
 
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.2")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.3")
 
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.29")