fix: fix OIDC authorization bug (#3842)

ietf/templates/oidc_provider/authorize.html

@@ -21,7 +21,7 @@
                 </li>
             {% endfor %}
         </ul>
-        <button class="btn btn-primary" name="allow" type="submit">Authorize</button>
+        <button class="btn btn-primary" name="allow" type="submit" value="Authorize">Authorize</button>
         <button class="btn btn-secondary float-end" type="submit">Decline</button>
     </form>
-{% endblock %}
+{% endblock %}