How do you get wordpress plugin shortcode to $_GET url parameters

I have a plugin on a page update-data which has a shortcode on the page of [updatedata]

here is what an update row looks like

<td><a href="<?php echo admin_url('http://localhost/update-data&id='.$id); ?>">UPDATE</a></td>

Here is what the plugin code is

<?php
    /*
    plugin name: deano plugin update
    description: deano test database to update data into books table
    author: Dean-O

    */
    $path = preg_replace('/wp-content.*$/', '', __DIR__);
    require_once($path.'/wp-load.php');

    error_log("here");  // echos to log file
    error_log(var_dump($id));  // echos a blank line to the log file
    error_log("here 2"); // echos to the log file

    function deanoupdatedata($atts, $content = null ) {
        $a = shortcode_atts( array(
            'id' => 'id'
        ), $atts );
    
        return '<a id="' . esc_attr($a['id']) . '</a>';   // never displays
    }
    add_shortcode('updatedata','deanoupdatedata');
?>

How can I get the url parameter id in the plugin when I click on update link?