[MINOR] Clean up the joinCriteria in SQL parser

## What changes were proposed in this pull request?
Clean up the joinCriteria parsing in the parser by directly using identifierList

## How was this patch tested?
N/A

Closes #22648 from gatorsmile/cleanupJoinCriteria.

Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>

sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4

@@ -468,7 +468,7 @@ joinType
 
 joinCriteria
     : ON booleanExpression
-    | USING '(' identifier (',' identifier)* ')'
+    | USING identifierList
     ;
 
 sample

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala

@@ -701,7 +701,7 @@ class AstBuilder(conf: SQLConf) extends SqlBaseBaseVisitor[AnyRef] with Logging
         // Resolve the join type and join condition
         val (joinType, condition) = Option(join.joinCriteria) match {
           case Some(c) if c.USING != null =>
-            (UsingJoin(baseJoinType, c.identifier.asScala.map(_.getText)), None)
+            (UsingJoin(baseJoinType, visitIdentifierList(c.identifierList)), None)
           case Some(c) if c.booleanExpression != null =>
             (baseJoinType, Option(expression(c.booleanExpression)))
           case None if join.NATURAL != null =>