Merge pull request #567 from scalacenter/update/sbt-ci-release-1.9.3

Update sbt-ci-release to 1.9.3

Author: adpi2

project/plugins.sbt

@@ -1,3 +1,3 @@
 addSbtPlugin("com.eed3si9n"   % "sbt-buildinfo"  % "0.13.1")
 addSbtPlugin("ch.epfl.scala"  % "sbt-scalafix"   % "0.14.2")
-addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.8.0")
+addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.9.3")