feat(ci): cache node_modules

.drone.yml

@@ -6,6 +6,9 @@ steps:
     image: node
     commands:
       - make build-view
+    volumes:
+    - name: cache
+      path: /drone/src/view/node_modules
   - name: deploy
     image: alpacadb/docker-lftp
     environment:
@@ -17,3 +20,8 @@ steps:
       - pwd
       - cd view/public
       - lftp -e "set sftp:auto-confirm true; set ftp:ssl-force true; set xfer:timeout 10000; debug 3; open -u $FTP_USERNAME,$FTP_PASSWORD sftp://ssh.jim-fx.com:2221; mkdir -p share/karl; cd share/karl; mirror -p --scan-all-first --overwrite --verbose -R --skip-noaccess; quit;"
+
+volumes:
+- name: cache
+  host:
+    path: /tmp/drone/cache/node_modules