Merge pull request #886 from scala-steward/update/auxlib-0.5.9

Update auxlib, clib, javalib, nativelib, ... to 0.5.9

Author: lrytz

project/plugins.sbt

@@ -11,4 +11,4 @@ addSbtPlugin("com.github.sbt" % "sbt-pgp"         % "2.3.1")
 addSbtPlugin("com.typesafe"   % "sbt-mima-plugin" % "1.1.4")
 
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
-addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.8")
+addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.9")