aurweb: bump to 6.1.2 version

Signed-off-by: Leonidas Spyropoulos <artafinde@archlinux.org>

roles/aurweb/defaults/main.yml

@@ -8,7 +8,7 @@ aurweb_conf_dir: '/etc/aurweb'
 aurweb_git_dir: "{{ aurweb_dir }}/aur.git"
 aurweb_git_hook: '/usr/local/bin/aurweb-git-update'
 aurweb_nginx_conf: '/etc/nginx/nginx.d/aurweb.conf'
-aurweb_version: 'live'
+aurweb_version: 'v6.1.2'
 aurweb_pgp_keys: ['0F985B6F99B6686854C44EC3F7E46DED420788F3', 'DB650286BD9EAE39890D3FE6FE3DC1668CB24956']
 
 aurweb_db: 'aur'