acme: interpret no TOS as accepted

some custom ACME endpoints do not have TOS, interpret this as
'the user has accepted the TOS', like we do for PVE.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/bin/proxmox_backup_manager/acme.rs

@@ -154,7 +154,8 @@ async fn register_account(
             false
         }
     } else {
-        false
+        println!("No Terms of Service found, proceeding.");
+        true
     };
 
     println!("Attempting to register account with {:?}...", directory);