fix exclude fields from select with es6

Author: fupelaqu

es6/sql-bridge/src/test/scala/app/softnetwork/elastic/sql/SQLQuerySpec.scala

@@ -510,7 +510,6 @@ class SQLQuerySpec extends AnyFlatSpec with Matchers {
         |   "match_all":{}
         | },
         | "_source":{
-        |   "includes":["*"],
         |   "excludes":["col1","col2"]
         | }
         |}""".stripMargin.replaceAll("\\s+", "")