Merge pull request #538 from scala-steward/update/sbt-scalafmt-2.4.3

Update sbt-scalafmt to 2.4.3

Author: japgolly

project/plugins.sbt

@@ -2,4 +2,4 @@ addSbtPlugin("ch.epfl.scala" % "sbt-scalafix"        % "0.9.30")
 addSbtPlugin("com.geirsson"  % "sbt-ci-release"      % "1.5.7")
 addSbtPlugin("com.lihaoyi"   % "scalatex-sbt-plugin" % "0.3.11")
 addSbtPlugin("org.scala-js"  % "sbt-scalajs"         % "1.5.1")
-addSbtPlugin("org.scalameta" % "sbt-scalafmt"        % "2.0.7")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt"        % "2.4.3")