Update sbt-scalajs-crossproject to 1.0.0

Author: scala-steward

project/plugins.sbt

@@ -2,6 +2,6 @@ val scalaJSVersion =
   Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.32")
 
 addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.1.3")
-addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.1")
+addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)
 addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.0")