Update nscplugin, sbt-scala-native, ... to 0.4.9

Author: scala-steward

project/plugins.sbt

@@ -4,7 +4,7 @@ addSbtPlugin("pl.project13.scala" % "sbt-jmh"                  % "0.4.3")
 
 addSbtPlugin("org.scala-js"       % "sbt-scalajs"                   % "1.12.0")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject"      % "1.2.0")
-addSbtPlugin("org.scala-native"   % "sbt-scala-native"              % "0.4.7")
+addSbtPlugin("org.scala-native"   % "sbt-scala-native"              % "0.4.9")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.2.0")
 addSbtPlugin("org.scalameta"      % "sbt-scalafmt"                  % "2.5.0")
 addSbtPlugin("org.scalameta"      % "sbt-mdoc"                      % "2.3.6")