[SPARK-30030][INFRA] Use RegexChecker instead of TokenChecker to check org.apache.commons.lang.

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

This PR replace `TokenChecker` with `RegexChecker` in `scalastyle` and fixes the missed instances.

### Why are the changes needed?

This will remove the old `comons-lang2` dependency from `core` module

**BEFORE**
```
$ dev/scalastyle
Scalastyle checks failed at following occurrences:
[error] /Users/dongjoon/PRS/SPARK-SerializationUtils/core/src/test/scala/org/apache/spark/util/PropertiesCloneBenchmark.scala:23:7: Use Commons Lang 3 classes (package org.apache.commons.lang3.*) instead
[error]     of Commons Lang 2 (package org.apache.commons.lang.*)
[error] Total time: 23 s, completed Nov 25, 2019 11:47:44 AM
```

**AFTER**
```
$ dev/scalastyle
Scalastyle checks passed.
```

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

No.

### How was this patch tested?

Pass the GitHub Action linter.

Closes apache#26666 from dongjoon-hyun/SPARK-29081-2.

Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>

Author: dongjoon-hyun

core/src/test/scala/org/apache/spark/util/PropertiesCloneBenchmark.scala

@@ -20,7 +20,7 @@ import java.util.Properties
 
 import scala.util.Random
 
-import org.apache.commons.lang.SerializationUtils
+import org.apache.commons.lang3.SerializationUtils
 
 import org.apache.spark.benchmark.{Benchmark, BenchmarkBase}
 

scalastyle-config.xml

@@ -258,7 +258,7 @@ This file is divided into 3 sections:
     scala.collection.JavaConverters._ and use .asScala / .asJava methods</customMessage>
   </check>
 
-  <check customId="commonslang2" level="error" class="org.scalastyle.scalariform.TokenChecker" enabled="true">
+  <check customId="commonslang2" level="error" class="org.scalastyle.file.RegexChecker" enabled="true">
     <parameters><parameter name="regex">org\.apache\.commons\.lang\.</parameter></parameters>
     <customMessage>Use Commons Lang 3 classes (package org.apache.commons.lang3.*) instead
     of Commons Lang 2 (package org.apache.commons.lang.*)</customMessage>