Articles Media Upload throws when uploading animated png

[maerzhase]

Animated .png is valid for e.g. thumbnail but throws on upload.

You can test with this png:

[GemN]

this is a file api error now:

{"error":"image/apng is not supported. Only supported files are: image/jpeg, image/gif, image/webp, image/png, image/svg+xml, application/xml, video/mp4, video/webm, audio/mpeg, audio/mp3, audio/wav"}