fix(ci): post 块中用 script 包裹 Groovy 变量声明

Jenkinsfile

@@ -174,8 +174,10 @@ pipeline {
     post {
         success {
             bat 'chcp 65001 >nul && echo Android SDK 构建成功'
-            def safeVersions = env.PUBLISHED_VERSIONS.replaceAll('\\r?\\n', ' | ')
-            bat "chcp 65001 >nul && echo 发布版本: ${safeVersions}"
+            script {
+                def safeVersions = env.PUBLISHED_VERSIONS.replaceAll('\\r?\\n', ' | ')
+                bat "chcp 65001 >nul && echo 发布版本: ${safeVersions}"
+            }
         }
         failure { bat 'chcp 65001 >nul && echo Android SDK 构建失败' }
     }