add updateUserLastLogin to fake client

features/fakes/FakeIdBrokerClient.php

@@ -56,6 +56,26 @@ public function mfaVerify(int $id, string $employeeId, string|array $value): arr
         ];
     }
 
+    /**
+     * Update the User last_login_utc by calling the internal method
+     * @param string $employeeId
+     * @return array An array of information about the updated user only including last_login_utc and employee_id
+     * @throws Exception
+     */
+    public function updateUserLastLogin(string $employeeId): array
+    {
+        if (empty($employee_id)) {
+            throw new InvalidArgumentException('employee_id is required');
+        }
+
+        $nowUtc = gmdate('Y-m-d H:i:s');
+
+        return [
+            'employee_id' => $employeeId,
+            'last_login_utc' => $nowUtc,
+        ];
+    }
+
     /**
      * Create a new MFA configuration
      * @param string $employee_id