EAS build new upload key for Android


I made an app for our local community and I uploaded it to Play Store before using expo build.
Now I wanted to use eas build and I got an error that my upload key didn’t match, so I requested a new one via Google.

They provided me with a new upload certificate, however I cannot change it via eas credentials because the certificate from Google Play Console is .DER and this is in the wrong format for eas credentials.

Does anyone know how I can set up the correct upload key so I can use eas build in the future?