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

Author: 47erbot

project/plugins.sbt

@@ -10,4 +10,4 @@ addSbtPlugin("com.alejandrohdezma" % "sbt-github-mdoc"          % "0.12.0")
 addSbtPlugin("com.alejandrohdezma" % "sbt-remove-test-from-pom" % "0.1.0")
 addSbtPlugin("org.typelevel"       % "sbt-tpolecat"             % "0.5.2")
 addSbtPlugin("com.eed3si9n"        % "sbt-projectmatrix"        % "0.11.0")
-addSbtPlugin("org.scala-js"        % "sbt-scalajs"              % "1.19.0")
+addSbtPlugin("org.scala-js"        % "sbt-scalajs"              % "1.20.1")