[ci] Fixes reference to wrong ssh key

.drone.yml

@@ -30,7 +30,7 @@ steps:
         - vrobbler.service
       username: root
       ssh_key:
-        from_secret: jail_key
+        from_secret: unbl_ink_key
       command_timeout: 2m
       script:
         - pip uninstall -y vrobbler