Update sbt-scalajs, scalajs-compiler, ... to 1.16.0 (#1349)

Author: scala-steward

project/plugins.sbt

@@ -6,7 +6,7 @@ addSbtPlugin("com.github.sbt"                    % "sbt-osgi"              % "0.
 addSbtPlugin("com.eed3si9n"                      % "sbt-buildinfo"         % "0.11.0")
 addSbtPlugin("com.github.sbt"                    % "sbt-ci-release"        % "1.5.12")
 addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings"      % "3.0.2")
-addSbtPlugin("org.scala-js"                      % "sbt-scalajs"           % "1.15.0")
+addSbtPlugin("org.scala-js"                      % "sbt-scalajs"           % "1.16.0")
 addSbtPlugin("org.scala-native"                  % "sbt-scala-native"      % "0.4.17")
 addSbtPlugin("org.portable-scala"                % "sbt-scalajs-crossproject" % "1.3.2")
 addSbtPlugin("org.portable-scala"                % "sbt-scala-native-crossproject" % "1.3.2")