Update sbt-proguard to 0.5.1

Author: foundweekends-bot[bot]

project/plugins.sbt

@@ -2,5 +2,5 @@ addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.1.2")
 addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.9")
 addSbtPlugin("com.github.sbt" % "sbt-release" % "1.1.0")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.10.0")
-addSbtPlugin("com.github.xuwei-k" % "sbt-proguard" % "0.5.0")
+addSbtPlugin("com.github.xuwei-k" % "sbt-proguard" % "0.5.1")
 libraryDependencies += "org.scala-sbt" %% "scripted-plugin" % sbtVersion.value