Updated script execution path

The shell_exec command in index.php has been updated to include the document root in the script path. This change ensures that the correct script is executed regardless of the current working directory.

index.php

@@ -2,5 +2,5 @@
 header('Content-Type: text/plain; version=0.0.4');
 $config = getenv('CONFIG_FILE'); 
 $phpbin = getenv('PHP_BINARY');
-$output = shell_exec('CONFIG_FILE="' . $config . '" ' . $phpbin . ' script.php');
+$output = shell_exec('CONFIG_FILE="' . $config . '" ' . $phpbin . ' ' . $_SERVER['DOCUMENT_ROOT'] . 'script.php');
 echo $output;

script.php

@@ -122,7 +122,7 @@ if(php_sapi_name() == 'cli' || $_SERVER["REQUEST_URI"] == '/metrics') {
 
     $loader = new \Twig\Loader\FilesystemLoader('templates');
     $twig = new \Twig\Environment($loader, [
-        'cache' => 'twig-cache',
+        'cache' => 'twig_cache',
     ]);
     echo $twig->render('metrics.twig', ['config' => $config]);
 }