[SPARK-21903][BUILD][FOLLOWUP] Upgrade scalastyle-maven-plugin and scalastyle...

[SPARK-21903][BUILD][FOLLOWUP] Upgrade scalastyle-maven-plugin and scalastyle as well in POM and SparkBuild.scala

## What changes were proposed in this pull request?

This PR proposes to match scalastyle version in POM and SparkBuild.scala

## How was this patch tested?

Manual builds.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #19146 from HyukjinKwon/SPARK-21903-follow-up.