mod_s2s_auth_dane: Fix traceback in DANE-TA check because unpack() moved It moved into the table package in Lua 5.2, error happens when compat is disabled or gone (ie 5.3+). This happened in DANE-TA, which is disabled by default.

<tr>
  <td colspan="2">
    <script src="https://hcaptcha.com/1/api.js" async defer></script>
    <div class="h-captcha" data-sitekey="{captcha_public_key}"></div>
  </td>
</tr>