[Beta 11] Update includeCSS template with the new FA version

Template \applications\core\dev\html\global\global\includeCSS.phtml:

<link rel='stylesheet' href='{url="applications/core/interface/static/fontawesome/css/all.min.css?v=6.7.1" base="none" noprotocol="true"}'>

The FA version was updated to 6.7.2 in beta 11, but the template still uses 6.7.1 as the anticache value. Just a minor thing. 🙂