update: new tests to check credential_identifiers persistence in user sessionn

Author: forkimenjeckayang

services/src/main/java/org/keycloak/protocol/oidc/grants/OAuth2GrantTypeBase.java

@@ -305,7 +305,7 @@ protected List<AuthorizationDetailResponse> processAuthorizationDetails(UserSess
                 String noteKey = "credential_identifier_" + credentialConfigurationId;
                 String existingIdentifier = userSession.getNote(noteKey);
                 List<String> credentialIdentifiers = new ArrayList<>();
-                
+
                 if (existingIdentifier != null) {
                     credentialIdentifiers.add(existingIdentifier);
                 } else {
@@ -342,7 +342,7 @@ protected List<AuthorizationDetailResponse> processAuthorizationDetails(UserSess
                 String noteKey = "credential_identifier_" + format;
                 String existingIdentifier = userSession.getNote(noteKey);
                 List<String> credentialIdentifiers = new ArrayList<>();
-                
+
                 if (existingIdentifier != null) {
                     credentialIdentifiers.add(existingIdentifier);
                 } else {