TYPO3 Core

Hello,

after creating a Text & Media Element and adding a *.youtube file to the assets if was getting this error:


With this small fix the exception doesnt appear anymore.

System:
TYPO3: 11.5.13
PHP: 8.0.16

DDEV Config for reproduce purpose:
```
name: test-headless
type: typo3
docroot: public
php_version: "8.0"
composer_version: "2"
nodejs_version: "16"
database:
type: mysql
version: "5.7"
webserver_type: apache-fpm
router_http_port: "80"
router_https_port: "443"
xdebug_enabled: true
additional_fqdns: [ ]
nfs_mount_enabled: true
mutagen_enabled: false
webimage_extra_packages: [ cron ]
use_dns_when_possible: true
timezone: Europe/Berlin
web_environment: [ ]
```

Best regards
Fabio

This issue was automatically created from https://github.com/TYPO3/typo3/pull/395