i have similar problem with build native and secured random.
First, in my code, change SecuredRandom() in static or init value of a field move to constructor or body function.
In your application.properties or application.yaml (change the sintaxis only) add your class (the class that uses secure random, not java.security.SecureRandom u other) with the error, example:

quarkus.native.additional-build-args=--initialize-at-run-time=com.itextpdf.kernel.font.FontUtil\\,com.itextpdf.kernel.crypto.OutputStreamAesGcmEncryption

References: https://quarkus.io/guides/building-native-image#configuration-reference