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

Author: scalameta-bot

project/plugins.sbt

@@ -6,7 +6,7 @@ addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.16.0")
 
 addSbtPlugin("ch.epfl.scala" % "sbt-scalajs-bundler" % "0.21.1")
 
-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")