[Feature][Transform-V2] Support jsonpath extracting multiple fields in a configuration block

Author: xiaochen-zhou

seatunnel-transforms-v2/src/test/java/org/apache/seatunnel/transform/JsonPathTransformTest.java

@@ -286,7 +286,7 @@ public void testBatchFieldsValidation() {
                 Arrays.asList(
                         ImmutableMap.of(
                                 JsonPathTransformConfig.SRC_FIELD.key(), "data",
-                                JsonPathTransformConfig.PATH.key(), "$.id,$.name", // 2个path
+                                JsonPathTransformConfig.PATH.key(), "$.id,$.name",
                                 JsonPathTransformConfig.DEST_FIELD.key(), "id,name,age",
                                 JsonPathTransformConfig.DEST_TYPE.key(), "bigint,string")));
         ReadonlyConfig config = ReadonlyConfig.fromMap(configMap);