Update sbt-welcome to 0.6.0

Author: scala-steward

project/plugins.sbt

@@ -20,6 +20,6 @@ addSbtPlugin("org.jetbrains" % "sbt-ide-settings" % "1.1.0")
 addSbtPlugin("com.thesamet" % "sbt-protoc" % "1.0.8")
 libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin" % "0.11.20"
 // documentation
-addSbtPlugin("com.github.reibitto" % "sbt-welcome" % "0.5.0")
+addSbtPlugin("com.github.reibitto" % "sbt-welcome" % "0.6.0")
 
 ThisBuild / libraryDependencySchemes += "org.scala-lang.modules" %% "scala-xml" % VersionScheme.Always