Merge pull request #523 from typelevel/update/auxlib-0.5.6

Update auxlib, clib, javalib, nativelib, ... to 0.5.6

Author: danicheg

project/plugins.sbt

@@ -1,6 +1,6 @@
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.17.0")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.3.2")
-addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.5")
+addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.6")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
 addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.7.4")
 addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % "0.7.4")