chore: upgrade Spring User Framework to 4.3.1

Fixes WebAuthn 500 errors caused by missing user_credentials table
(see devondragon/SpringUserFramework#286). Also removes unused
DSUserDetails constant from ApiTestData that caused NPE with the
new constructor signature.

Author: devondragon

build.gradle

@@ -39,7 +39,7 @@ repositories {
 
 dependencies {
     // DigitalSanctuary Spring User Framework
-    implementation 'com.digitalsanctuary:ds-spring-user-framework:4.3.0'
+    implementation 'com.digitalsanctuary:ds-spring-user-framework:4.3.1'
 
     // WebAuthn support (Passkey authentication)
     implementation 'org.springframework.security:spring-security-webauthn'

src/test/java/com/digitalsanctuary/spring/user/api/data/ApiTestData.java

@@ -2,12 +2,10 @@
 
 import com.digitalsanctuary.spring.user.dto.PasswordDto;
 import com.digitalsanctuary.spring.user.dto.UserDto;
-import com.digitalsanctuary.spring.user.service.DSUserDetails;
 
 public class ApiTestData {
 
     public static final UserDto BASE_TEST_USER = getUserDto();
-    public static final DSUserDetails DEFAULT_DETAILS = new DSUserDetails(null, null);
 
     public static PasswordDto getPasswordDto() {
         PasswordDto dto = new PasswordDto();