[Bug]: occ theming:config favicon "/root/nc.ico" Unsupported image type for .ico and .png

[ne0YT]

⚠️ This issue respects the following points: ⚠️

• [X] This is a bug, not a question or a configuration/webserver/proxy issue.
• [X] This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• [X] Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• [X] I agree to follow Nextcloud's Code of Conduct.

Bug description

setting favicon doesnt work: occ theming:config favicon "/root/nc.ico"

it tells me:

In ImageManager.php line 233:

  Unsupported image type

theming:config [-r|--reset] [--] [<key> [<value>]]

also happens with .png and .svg..

Steps to reproduce

1. having an ico-file named nc.ico inside /root
2. running this: occ theming:config favicon "/root/nc.ico"

Expected behavior

it sets my icon as the favicon

Installation method

Community SNAP package

Nextcloud Server version

25

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.1

Web server

Apache (supported)

Database engine version

MySQL

Is this bug present after an update or on a fresh install?

Fresh Nextcloud Server install

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• [ ] Default user-backend (database)
• [X] LDAP/ Active Directory
• [X] SSO - SAML
• [ ] Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response