Update sbt-scalajs to 1.13.1 (#164)

Author: scala-steward

build.sbt

@@ -8,6 +8,6 @@ description := "A Sbt plugin that setup source mapping for Scala.js projects hos
 
 startYear := Some(2016)
 
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.13.0")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.13.1")
 
 libraryDependencies += "org.eclipse.jgit" % "org.eclipse.jgit" % "6.5.0.202303070854-r"