Update sbt-scalajs, scalajs-compiler, ... to 1.20.1

Author: scala-steward

project/plugins.sbt

@@ -2,7 +2,7 @@ addSbtPlugin("org.typelevel"      % "sbt-typelevel-ci-release" % "0.8.0")
 addSbtPlugin("com.eed3si9n"       % "sbt-buildinfo"            % "0.13.1")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh"                  % "0.4.7")
 
-addSbtPlugin("org.scala-js"       % "sbt-scalajs"                   % "1.19.0")
+addSbtPlugin("org.scala-js"       % "sbt-scalajs"                   % "1.20.1")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject"      % "1.3.2")
 addSbtPlugin("org.scala-native"   % "sbt-scala-native"              % "0.5.8")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")