Bump scalafix to 0.6.0-RC1

Author: MasseGuillaume

build.sbt

@@ -1,9 +1,6 @@
 import ScalaModulePlugin._
 import sbtcrossproject.{crossProject, CrossType}
-import _root_.scalafix.internal.sbtscalafix.BuildInfo.{
-  scalafixVersion,
-  scala212 => scalafixScala212
-}
+import _root_.scalafix.sbt.BuildInfo.{scalafixVersion, scala212 => scalafixScala212}
 
 lazy val root = project
   .in(file("."))

project/plugins.sbt

@@ -10,7 +10,7 @@ val scalaJSVersion = Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty)
 addSbtPlugin("org.scala-js"           % "sbt-scalajs"              % scalaJSVersion)
 addSbtPlugin("org.portable-scala"     % "sbt-scalajs-crossproject" % "0.5.0")
 addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module"         % "1.0.14")
-addSbtPlugin("ch.epfl.scala"          % "sbt-scalafix"             % "0.6.0-M15")
+addSbtPlugin("ch.epfl.scala"          % "sbt-scalafix"             % "0.6.0-RC1")
 addSbtPlugin("com.eed3si9n"           % "sbt-buildinfo"            % "0.7.0")
 addSbtPlugin("com.typesafe.sbt"       % "sbt-pgp"                  % "0.8.3")