fix drone cache volume mounting when rebuilding

.drone.yml

@@ -28,7 +28,7 @@ steps:
       port:
         from_secret: rsync_port
       target: /srv/nginx/nginx/www/pigeoncatcher.site
-      source: dist/*
+      source: dist/
       user:
         from_secret: rsync_user
       key:
@@ -45,6 +45,9 @@ steps:
       archive_format: "gzip"
       mount:
         - "node_modules"
+    volumes:
+      - name: cache
+        path: /tmp/cache
 
 volumes:
   - name: cache