[SPARK-35609][BUILD] Add style rules to prohibit to use a Guava's API which is incompatible with newer versions

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

This PR adds rules to `checkstyle.xml` and `scalastyle-config.xml` to avoid introducing `Objects.toStringHelper` a Guava's API which is no longer present in newer Guava.

### Why are the changes needed?

SPARK-30272 (#26911) replaced `Objects.toStringHelper` which is an APIs Guava 14 provides with `commons.lang3` API because `Objects.toStringHelper` is no longer present in newer Guava.
But toStringHelper was introduced into Spark again and replaced them in SPARK-35420 (#32567).
I think it's better to have a style rule to avoid such repetition.

SPARK-30272 replaced some APIs aside from `Objects.toStringHelper` but `Objects.toStringHelper` seems to affect Spark for now so I add rules only for it.

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

No.

### How was this patch tested?

I confirmed that `lint-java` and `lint-scala` detect the usage of `toStringHelper` and let the lint check fail.
```
$ dev/lint-java
exec: curl --silent --show-error -L https://downloads.lightbend.com/scala/2.12.14/scala-2.12.14.tgz
Using `mvn` from path: /opt/maven/3.6.3//bin/mvn
Checkstyle checks failed at following occurrences:
[ERROR] src/main/java/org/apache/spark/network/protocol/OneWayMessage.java:[78] (regexp) RegexpSinglelineJava: Avoid using Object.toStringHelper. Use ToStringBuilder instead.

$ dev/lint-scala
Scalastyle checks failed at following occurrences:
[error] /home/kou/work/oss/spark/core/src/main/scala/org/apache/spark/rdd/RDD.scala:93:25: Avoid using Object.toStringHelper. Use ToStringBuilder instead.
[error] Total time: 25 s, completed 2021/06/02 16:18:25
```

Closes #32740 from sarutak/style-rule-for-guava.

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

Author: sarutak

dev/checkstyle.xml

@@ -185,6 +185,9 @@
             <property name="format" value="throw new \w+Error\("/>
             <property name="message" value="Avoid throwing error in application code."/>
         </module>
-
+        <module name="RegexpSinglelineJava">
+            <property name="format" value="Objects\.toStringHelper"/>
+            <property name="message" value="Avoid using Object.toStringHelper. Use ToStringBuilder instead." />
+        </module>
     </module>
 </module>

scalastyle-config.xml

@@ -397,4 +397,8 @@ This file is divided into 3 sections:
     <parameters><parameter name="ignore">-1,0,1,2,3</parameter></parameters>
   </check>
 
+  <check customId="GuavaToStringHelper" level="error" class="org.scalastyle.file.RegexChecker" enabled="true">
+    <parameters><parameter name="regex">Objects.toStringHelper</parameter></parameters>
+    <customMessage>Avoid using Object.toStringHelper. Use ToStringBuilder instead.</customMessage>
+  </check>
 </scalastyle>