Re-add drone config

.drone.yml

@@ -0,0 +1,26 @@
+---
+
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: deploy
+    image: appleboy/drone-scp
+    settings:
+      host: dragon.luj0ga.de
+      username: www
+      key:
+        from_secret: ssh_key
+      passphrase:
+        from_secret: ssh_passphrase
+      target: /srv/www/sites/maps.franconian.net/
+      source:
+        - '!.*'
+        - '*'
+      rm: yes
+    when:
+      event:
+        - push
+      branch:
+        - main