switch to new drone syntax

.drone.yml

@@ -1,5 +1,9 @@
-pipeline:
-  build:
+---
+kind: pipeline
+name: default
+
+steps:
+  - name: build
     image: node
     commands:
       - npm install -g gulp
@@ -8,13 +12,17 @@ pipeline:
     when:
       event: push
 
-  update:
+  - name: update
     image: appleboy/drone-git-push
-    branch: master
-    remote: gitea@gitea.rknet.org:xoxys/theme-geeklab.git
-    commit: true
-    commit-message: "[SKIP CI] update artifacts"
-    force: false
-    secrets: [git_push_ssh_key]
+    settings:
+      branch: master
+      remote: gitea@gitea.rknet.org:xoxys/theme-geeklab.git
+      commit: true
+      commit-message: "[SKIP CI] update artifacts"
+      force: false
+      key:
+        from_secret: git_push_ssh_key
+      author_name: DroneShipper
+      author_email: shipper@rknet.org
     when:
       event: push