Update junit-plugin, junit-runtime, ... to 0.4.16 (#351)

Author: scala-steward

project/plugins.sbt

@@ -4,7 +4,7 @@ resolvers ++= Resolver.sonatypeOssRepos("snapshots")
 // versions
 val crossVer = "1.3.2"
 val scalaJSVersion = "1.14.0"
-val scalaNativeVersion = "0.4.15"
+val scalaNativeVersion = "0.4.16"
 val scalafix = "0.11.1"
 
 // includes sbt-dynver sbt-pgp sbt-sonatype sbt-git