Merge pull request #1391 from scala-steward/update/sbt-jmh-0.4.8

Update sbt-jmh to 0.4.8

Author: ddworak

project/plugins.sbt

@@ -10,4 +10,4 @@ addSbtPlugin("org.jetbrains.scala" % "sbt-ide-settings" % "1.1.3")
 addSbtPlugin("com.github.sbt" % "sbt-less" % "2.0.1")
 addSbtPlugin("com.github.sbt" % "sbt-native-packager" % "1.11.3")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.11.2")
-addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.7")
+addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.8")