Added missing Javadocs for Java 21

src/main/java/org/json/CookieList.java

@@ -11,6 +11,12 @@ Public Domain.
  */
 public class CookieList {
 
+    /**
+     * Constructs a new CookieList object.
+     */
+    public CookieList() {
+    }
+ 
     /**
      * Convert a cookie list into a JSONObject. A cookie list is a sequence
      * of name/value pairs. The names are separated from the values by '='.