Update nux desktop repo url

ansible/files/nux-dextop.repo

 [nux-dextop]
 name=Nux.Ro RPMs for general desktop use
-baseurl= http://mirror.li.nux.ro/li.nux.ro/nux/dextop/el7/$basearch/
+baseurl=http://li.nux.ro/download/nux/dextop/el7/$basearch/
 enabled=1
 gpgcheck=1
 gpgkey=http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro
@@ -8,7 +8,7 @@ protect=0
 
 [nux-dextop-testing]
 name=Nux.Ro RPMs for general desktop use - testing
-baseurl=http://mirror.li.nux.ro/download/nux/dextop-testing/el7/$basearch/
+baseurl=http://li.nux.ro/download/nux/dextop-testing/el7/$basearch/
 enabled=0
 gpgcheck=1
 gpgkey=http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro