Two pages recommend obsolete versions of ScalaTest

[SethTisue]

_getting-started/intellij-track/testing-scala-in-intellij-with-scalatest.md:        libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.8" % Test
_ja/getting-started/intellij-track/testing-scala-in-intellij-with-scalatest.md:        libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.8" % Test
_overviews/scala-book/sbt-scalatest-tdd.md:    "org.scalatest" %% "scalatest" % "3.0.8" % Test
_overviews/scala-book/sbt-scalatest-tdd.md:    "org.scalatest" %% "scalatest" % "3.0.8" % Test

3.0.8 is ancient; these pages should recommend the latest (3.2) and the code on them will need to be updated as well (FunSuite -> AnyFunSuite and such)

this was reported by a user on Discord