roles/aurweb: Fix the user on the cgit uwsgi configuration

The user for the socket was set incorrectly, fixed it.

roles/aurweb/templates/cgit.ini.j2

 [uwsgi]
 plugins = cgi
 socket = /run/uwsgi/cgit.sock
-chown-socket = http:http
+chown-socket = {{ aurweb_user }}:http
 chmod-socket = 770
 threads = 4
 
 cgi = /usr/share/webapps/cgit-aurweb/cgit.cgi
 uid = {{ aurweb_user }}
-gid = {{ aurweb_user }}
+gid = http