Update sbt-scalafix to 0.13.0

Author: scala-steward

project/plugins.sbt

@@ -10,7 +10,7 @@ addSbtPlugin("ch.epfl.scala" % "sbt-scalajs-bundler" % "0.21.0-RC1")
 
 addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.3.1")
 
-addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.10.0")
+addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.13.0")
 
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")