Update sbt-scalajs, scalajs-library_2.13, ... to 1.16.0 (#328)

Author: hnaderi

project/plugins.sbt

@@ -6,7 +6,7 @@ addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.10.0")
 addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.6.7")
 addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % "0.6.7")
 addSbtPlugin("org.typelevel" % "sbt-typelevel-github-actions" % "0.6.7")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.15.0")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.16.0")
 addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.5.2")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.17")