cloudron-support: Use the PROVIDER file

scripts/cloudron-support

@@ -107,7 +107,7 @@ if [[ "${enableSSH}" == "true" ]]; then
     permit_root_login=$(grep -q ^PermitRootLogin.*yes /etc/ssh/sshd_config && echo "yes" || echo "no")
 
     # support.js uses similar logic
-    if $(grep -q "ec2\|lightsail\|ami" /etc/cloudron/cloudron.conf); then
+    if $(grep -q "ec2\|lightsail\|ami" /etc/cloudron/PROVIDER); then
         ssh_user="ubuntu"
         keys_file="/home/ubuntu/.ssh/authorized_keys"
     else