Deploy with deployer and composer update

[staging] Generating optimized autoload files
[staging] > Illuminate\Foundation\ComposerScripts::postAutoloadDump
[staging] > @php artisan package:discover --ansi
[staging] In RouteRegistrar.php line 107:
[staging] Attribute [singleton] does not exist.
[staging] Script @php artisan package:discover --ansi handling the post-autoload-dump event returned with error code 1

{
...
    "require": {
        "php": "^7.3|^8.0",
        "area17/twill": "2.12.4",
        "area17/twill-image": "^1.0",
        "blade-ui-kit/blade-heroicons": "^1.2",
        "cweagans/composer-patches": "^1.7",
        "cwsdigital/twill-metadata": "^1.2.2",
        "fruitcake/laravel-cors": "^2.0",
        "kalnoy/nestedset": "^6.0",
        "laravel/sanctum": "^2.11",
        "laravel/tinker": "^2.5",
        "laravelium/sitemap": "^8.0",
        "mcamara/laravel-localization": "^1.7",
        "sendinblue/api-v3-sdk": "8.x.x",
        "ext-json": "*",
        "ext-pdo": "*",
        "astrotomic/laravel-translatable": "^11.5",
        "cartalyst/tags": "^6.0|^7.0|^8.0|^9.0|^10.0|^11.0|^12.0",
        "doctrine/dbal": "^2.12|^3.0",
        "guzzlehttp/guzzle": "^6.2|^7.0",
        "imgix/imgix-php": "^3.0",
        "laravel/framework": "~5.6|~5.7|~5.8|^6.0|^7.0|^8.0|^9.0",
        "laravel/socialite": "^4.2|^5.0",
        "laravel/ui": "^1.0|^2.0|^3.0",
        "league/flysystem-aws-s3-v3": "^1.0|^2.0|^3.0",
        "league/glide-laravel": "^1.0",
    },
    "require-dev": {
        "chillerlan/php-qrcode": "~2.0|~3.0|~4.0",
        "deployer/deployer": "^7.1",
        "friendsofphp/php-cs-fixer": "^2.16|^3.0",
        "kalnoy/nestedset": "^5.0|^6.0",
        "orchestra/testbench": "~3.3|~3.4|~3.5|~3.6|~3.7|~3.8|^4.0|^5.0|^6.0|^7.0"
    },...