Update sbt-ci-release to 1.5.4

Author: scala-steward

project/plugins.sbt

@@ -5,7 +5,7 @@ addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)
 
 addSbtPlugin("ch.epfl.scala" % "sbt-scalajs-bundler" % "0.20.0")
 
-addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.3")
+addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.4")
 
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.2")