Revert "[SPARK-29528][BUILD][TEST-MAVEN] Upgrade scala-maven-plugin to 4.2.4 for Scala 2.13.1"

This reverts commit 5fc363b.

Author: dongjoon-hyun

pom.xml

@@ -2241,7 +2241,7 @@
         <plugin>
           <groupId>net.alchim31.maven</groupId>
           <artifactId>scala-maven-plugin</artifactId>
-          <version>4.2.4</version>
+          <version>4.2.0</version>
           <executions>
             <execution>
               <id>eclipse-add-source</id>