PDF export not working for Amharic

[timobrembeck]

Describe the Bug

The alphabet of Amharic is not supported by our PDF export at the moment

Steps to Reproduce

1. Go to a page in Amharic, e.g. https://integreat.app/nuernberg/am/%E1%89%A3%E1%88%85%E1%88%8D/%E1%89%A3%E1%88%85%E1%88%8B%E1%8B%8A-%E1%8A%A0%E1%8B%B5%E1%88%AB%E1%88%BE%E1%89%BD
2. Export as PDF
3. See broken PDF

Expected Behavior

We should support all languages in our ecosystem

Actual Behavior

Amharic alphabet does not work

Additional Information

https://cms.integreat-app.de/pdf/c94ef6023a/Integreat%20-%20Amharisch%20-%20%E1%89%A3%E1%88%85%E1%88%8B%E1%8B%8A%20%E1%8A%A0%E1%8B%B5%E1%88%AB%E1%88%BE%E1%89%BD.pdf