ghost: fix for failing backup

they changed from username-password to token-based auth and they didn't mark it as a breaking change smh my head

ghost_server-credentials copy.exp

@@ -1,14 +1,10 @@
 #!/usr/bin/expect
 
-set email "<email_address>"
-set pw "<password>"
+set stafftoken "<staff_token>"
 
 spawn ghost backup
 
-expect "Ghost administrator email address"
-send "$email\r"
-
-expect "Ghost administrator password"
-send "$pw\r"
+expect "Ghost Staff access token"
+send "$stafftoken\r"
 
 expect eof