What are the main cost drivers for Secrets in CI/CD, and how do I optimize them?

    // Example of integrating secrets into a CI/CD pipeline
    // Utilizing environment variables to manage sensitive information
    sensitive_api_key = getenv('SENSITIVE_API_KEY');

    if (empty($sensitive_api_key)) {
        die('Sensitive API Key is not set. Exiting...');
    }

    // Proceed with using the sensitive API Key in your application
    echo "Using sensitive API key: " . $sensitive_api_key;