[BUG]: Router parts cannot be unset, if matches parts are optional

[kenyeung826]

Describe the bug
A clear and concise description of what the bug is.
Router parts cannot be unset, if matches parts are optional

To Reproduce
The Annotation Route Prefix

/**
 * @RoutePrefix('/soundcolumn')
 */

The Annotation Route Method with 2 optional parts

/**
* @Get('{id:(/[0-9]+)?}{slug:(/.+)?}')
*/

When request with /soundcolumn, assume the id and slug are unset.
The following is the result from $router->getParams()

(
    [namespace] => App\Controller
    [controller] => sound_column
    [action] => show
    [id] => 1
    [slug] => 2
)

Expected behavior
When request with /soundcolumn, assume the id and slug are unset

Details

• Phalcon version: 5.6.0
• PHP Version: 8.3.3
• Operating System: Linux Rocky 9 (5.14.0-362.18.1.el9_3.x86_64)
• Installation type: install through remi-repo
• Zephir version (if any):
• Server: Nginx
• Other related info (Database, table schema): MySQL 5.6.36