symfony/polyfill-php80 should be moved to require section in composer.json file

I observed that polyfill package **symfony/polyfill-php80** is used. 

File: `src/lib/items/RouteData.php::detectUrlPattern()`

```php
if (!str_starts_with(trim($this->path, '/'), trim($prefix, '/'))) {
```

It is present in `require-dev` section in composer.json

It should be present in `require` section