[CST-6152] allow password change only if a challenge is resolved.

dspace-api/src/main/java/org/dspace/authenticate/OidcAuthenticationBean.java

@@ -294,4 +294,9 @@ public class OidcAuthenticationBean implements AuthenticationMethod {
         return false;
     }
 
+    @Override
+    public boolean canChangePassword(Context context, String challenge) {
+        return false;
+    }
+
 }