refactor: simplify three lines code in AbstractSQL.java

replace `foreach statement` with `Collections.addAll`

Author: xdshent

src/main/java/org/apache/ibatis/jdbc/AbstractSQL.java

@@ -18,6 +18,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 /**
@@ -79,9 +80,7 @@ public T INTO_COLUMNS(String... columns) {
    */
   public T INTO_VALUES(String... values) {
     List<String> list = sql().valuesList.get(sql().valuesList.size() - 1);
-    for (String value : values) {
-      list.add(value);
-    }
+    Collections.addAll(list, values);
     return getSelf();
   }