[SPARK-36276][BUILD][FOLLOWUP] Match the version of SBT's checkstyle plugin to Maven's one

### What changes were proposed in this pull request?

This PR upgrade SBT's checkstyle plugin to `8.43`.

### Why are the changes needed?

The previous PR (apache#33500) upgraded Maven's plugin but seems to have forgot to do for SBT's one.

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

CIs.

Closes apache#34295 from sarutak/upgrade-checkstyle-plugin-to-8.43-for-sbt.

Authored-by: Kousuke Saruta <[email protected]>
Signed-off-by: Hyukjin Kwon <[email protected]>

Author: sarutak

pom.xml

@@ -3152,6 +3152,10 @@
         </configuration>
         <dependencies>
           <dependency>
+            <!--
+              If you are changing the dependency setting for checkstyle plugin,
+              please check project/plugins.sbt too.
+            -->
             <groupId>com.puppycrawl.tools</groupId>
             <artifactId>checkstyle</artifactId>
             <version>8.43</version>

project/plugins.sbt

@@ -18,7 +18,9 @@
 addSbtPlugin("com.etsy" % "sbt-checkstyle-plugin" % "3.1.1")
 
 // sbt-checkstyle-plugin uses an old version of checkstyle. Match it to Maven's.
-libraryDependencies += "com.puppycrawl.tools" % "checkstyle" % "8.39"
+// If you are changing the dependency setting for checkstyle plugin,
+// please check pom.xml in the root of the source tree too.
+libraryDependencies += "com.puppycrawl.tools" % "checkstyle" % "8.43"
 
 // checkstyle uses guava 23.0.
 libraryDependencies += "com.google.guava" % "guava" % "23.0"