Merge pull request #139 from scala-steward/update/sbt-scalajs-1.5.1

Update sbt-scalajs, scalajs-compiler, ... to 1.5.1

Author: rossabaker

project/plugins.sbt

@@ -3,5 +3,5 @@ addSbtPlugin("com.codecommit" % "sbt-spiewak-sonatype" % "0.20.4")
 addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.19")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.2")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.0")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.5.0")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.5.1")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")