Merge pull request #1038 from scala-steward/update/3.0.x/sbt-ci-release-1.11.1

[3.0.x] sbt-ci-release 1.11.1 (was 1.9.3)

Author: mkurz

project/plugins.sbt

@@ -3,4 +3,4 @@ addSbtPlugin("org.scalameta"      % "sbt-scalafmt"    % "2.5.4")
 addSbtPlugin("com.typesafe"       % "sbt-mima-plugin" % "1.1.4")
 addSbtPlugin("de.heikoseeberger"  % "sbt-header"      % "5.10.0")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh"         % "0.4.7")
-addSbtPlugin("com.github.sbt"     % "sbt-ci-release"  % "1.9.3")
+addSbtPlugin("com.github.sbt"     % "sbt-ci-release"  % "1.11.1")