add drone-rsync plugin

.drone.yml

@@ -19,17 +19,15 @@ steps:
   commands:
   - hugo --minify --destination /drone/src/build
 
-- name: Upload
-  image: jguyomard/hugo-builder
-  commands:
-  - eval `ssh-agent -s`
-  - echo "$SSH_KEY" | ssh-add -
-  - mkdir -p ~/.ssh
-  - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config
-  - rsync -rv -e "ssh -6 -p 22" /drone/src/build/ root@pasiphae.int.goe.de.n0emis.eu:/var/www/n0emis.eu/ --checksum
-  environment:
-    SSH_KEY:
+- name: Deploy
+  image: drillster/drone-rsync
+  settings:
+    hosts:
+    - v6-pasiphae.int.goe.de.dyn.n0emis.eu
+    key:
       from_secret: ssh_key
+    source: /drone/src/build/
+    target: /var/www/n0emis.eu/
 
 trigger:
   branch: