Merge pull request #228 from scala-steward/update/sbt-scalajs-crossproject-0.6.1

Update sbt-scalajs-crossproject to 0.6.1

Author: dwijnand

project/plugins.sbt

@@ -1,7 +1,7 @@
 val scalaJSVersion = Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.28")
 
 addSbtPlugin("org.scala-js"           % "sbt-scalajs"              % scalaJSVersion)
-addSbtPlugin("org.portable-scala"     % "sbt-scalajs-crossproject" % "0.6.0")
+addSbtPlugin("org.portable-scala"     % "sbt-scalajs-crossproject" % "0.6.1")
 addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module"         % "2.0.0")
 addSbtPlugin("ch.epfl.scala"          % "sbt-scalafix"             % "0.9.5")
 addSbtPlugin("com.eed3si9n"           % "sbt-buildinfo"            % "0.9.0")