Update infra-specs link
Update link for infra-specs published documents at page
docs.openstack.org/infra
<dl>
<dd><a href="system-config/">Systems Documentation</a></dd>
- <dd><a href="http://specs.openstack.org/openstack-infra/infra-specs/">
+ <dd><a href="https://docs.opendev.org/opendev/infra-specs/latest/">
Specifications</a>
</dd>
<dd><a href="publications/">Slide Presentations</a></dd>
