fixes SQLServer insert statement, parse no into keyword.

shardingsphere-sql-parser/shardingsphere-sql-parser-dialect/shardingsphere-sql-parser-sqlserver/src/main/antlr4/imports/sqlserver/DMLStatement.g4

@@ -20,7 +20,7 @@ grammar DMLStatement;
 import Symbol, Keyword, SQLServerKeyword, Literals, BaseRule;
 
 insert
-    : withClause_? INSERT INTO tableName (AS? alias)? (insertValuesClause | insertSelectClause)
+    : withClause_? INSERT INTO? tableName (AS? alias)? (insertValuesClause | insertSelectClause)
     ;
 
 insertValuesClause