dependency on com.typesafe.play.play-json 2.10.6 when using scala 2.13

[ireactsam]

Due to this in the build.sbt, org.playframework.play-json 3.0.4 is only selected when using scala 3, but in fact it should be selected when using Play 3 (independent of scala 2.13 or scala 3):

def playJsonDependencies(scalaVersion: String) = {
  if (scalaVersion.startsWith("3")) Seq("org.playframework" %% "play-json" % "3.0.4")
  else Seq("com.typesafe.play" %% "play-json" % "2.10.6")
}