Merge pull request #583 from scala-steward/update/sbt-ci-release-1.5.9

Update sbt-ci-release to 1.5.9

Author: japgolly

project/plugins.sbt

@@ -3,7 +3,7 @@ libraryDependencies += "org.scala-js" %% "scalajs-env-selenium"     % "1.1.1"
 
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix"        % "0.9.30")
 addSbtPlugin("com.eed3si9n"  % "sbt-buildinfo"       % "0.10.0")
-addSbtPlugin("com.geirsson"  % "sbt-ci-release"      % "1.5.7")
+addSbtPlugin("com.github.sbt"  % "sbt-ci-release"      % "1.5.9")
 addSbtPlugin("com.lihaoyi"   % "scalatex-sbt-plugin" % "0.3.11")
 addSbtPlugin("org.scala-js"  % "sbt-scalajs"         % "1.5.1")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt"        % "2.4.3")