Update sbt-jmh to 0.4.6 (#266)

Author: scala-steward

project/plugins.sbt

@@ -6,7 +6,7 @@ addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.21")
 addSbtPlugin("com.github.sbt" % "sbt-release" % "1.1.0")
 addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.8")
-addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.5")
+addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.6")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.2")
 addSbtPlugin("org.scoverage" % "sbt-coveralls" % "1.3.9")
 addSbtPlugin("com.timushev.sbt" % "sbt-updates" % "0.6.4")