Update sbt-mima-plugin to 1.1.4

Author: scala-steward

project/plugins.sbt

@@ -1,5 +1,5 @@
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.12")
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.8.1")
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.4")
 addSbtPlugin("com.lightbend.sbt" % "sbt-proguard" % "0.4.0")
 
 libraryDependencies += "com.eed3si9n.jarjarabrams" %% "jarjar-abrams-core" % "1.14.0"