fix(ci): 修复when条件语法

问题:
- build-artifacts的when条件语法错误
- 导致步骤被取消

修复:
- 调整when条件的缩进和格式

.woodpecker.yml

@@ -198,10 +198,11 @@ steps:
       - /tmp/npm-cache:/root/.npm
       - /tmp/node-modules-cache:/woodpecker/src/node_modules
     when:
-      - event: push
+      event:
-        branch:
+        - push
-          - release
+      branch:
-          - release/**
+        - release
+        - release/**
 
   # ============================================
   # 阶段4: 部署到生产环境 (release分支)