fix: forgot about environment variables

* or I hoped Drone would find out on its own

.drone.yml

@@ -23,13 +23,22 @@ steps:
 - name: hugo-rsync-deploy
   pull: always
   image: immawanderer/archlinux-hugo:latest
+  environment:
+    hugo_key:
+      from_secret: hugo_key
+    hugo_user:
+      from_secret: hugo_user
+    hugo_host:
+      from_secret: hugo_host
+    hugo_dir:
+      from_secret: hugo_dir
   commands:
     - git submodule init
     - git submodule update
     - rm -rfv ./public
     - hugo --gc=true --minify
     - cat $hugo_key > hugo_deploy
-    - rsync -avze 'ssh -i hugo_deploy' --delete public/ $hugo_user@$hugo_host:$hugo_dir
+    - rsync -avze 'ssh -i ~/hugo_deploy' --delete public/ $hugo_user@$hugo_host:$hugo_dir
     - shred -zuv 7 hugo_deploy || true
   when:
     status: