Update sbt-pekko-build to 0.4.7

Author: scala-steward-asf[bot]

project/plugins.sbt

@@ -16,7 +16,7 @@ addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.4")
 // for releasing
 addSbtPlugin("com.github.sbt" % "sbt-dynver" % "5.1.1")
 addSbtPlugin("net.bzzt" % "sbt-reproducible-builds" % "0.32")
-addSbtPlugin("com.github.pjfanning" % "sbt-pekko-build" % "0.4.5")
+addSbtPlugin("com.github.pjfanning" % "sbt-pekko-build" % "0.4.7")
 addSbtPlugin("com.github.pjfanning" % "sbt-source-dist" % "0.1.13")
 addSbtPlugin("com.github.sbt" % "sbt-license-report" % "1.9.0")