protected Supplier<String> createDeviceFingerPrintCookieValue() {
        return randomStringGenerator::getNewString;
    }
{@link DeviceFingerprintExtractor} that sets/retrieves a
cookie from the request to track trusted devices.

@author Daniel Frett
@since 5.3.0
support/cas-server-support-trusted-mfa-core/src/main/java/org/apereo/cas/trusted/web/flow/fingerprint/CookieDeviceFingerprintExtractor.java