fix drone cache volume mounting when rebuilding

.drone.yml

@@ -34,6 +34,7 @@ steps:
       key:
         from_secret: rsync_key
       args:
+        - --recursive
         - --delete
   - name: rebuild-cache
     image: meltwater/drone-cache
@@ -45,6 +46,9 @@ steps:
       archive_format: "gzip"
       mount:
         - "node_modules"
+    volumes:
+      - name: cache
+        path: /tmp/cache
 
 volumes:
   - name: cache