[requirements][horizon] Requirements freeze exception for XStatic-Font-Awesome

Hello, I would like to request a requirements freeze exception to unpin XStatic-Font-Awesome and bump it from 4.7.0.0 to 6.2.1.2 [1]. This version doesn't use pkg_resources in build. From Horizon side we have worked around the required changes to use newer versions of the font [2], and after the requirements upgrade to 6.2 the hack can be safely removed. With kind regards, Tatiana [1] 977626: Bump XStatic-Font-Awesome to 6.2.1.2 and unpin it | https://review.opendev.org/c/openstack/requirements/+/977626 [2] 977249: A hack to make Horizon work with Font Awesome 6.2 | https://review.opendev.org/c/openstack/horizon/+/977249