fix: 添加 permissions 声明修复 CodeQL 安全告警

Co-authored-by: qinfendebingshuo <207279273+qinfendebingshuo@users.noreply.github.com>

.github/workflows/push-broadcast-feishu.yml

@@ -38,6 +38,7 @@ jobs:
   push-to-feishu:
     name: 📢 推送广播到飞书聊天
     runs-on: ubuntu-latest
+    permissions: {}
 
     steps:
       - name: 📢 推送广播消息卡片

.github/workflows/syslog-pipeline.yml

@@ -170,6 +170,7 @@ jobs:
     name: 📢 Pipeline C · 飞书广播推送
     runs-on: ubuntu-latest
     needs: [pipeline-a-syslog, pipeline-b-persona]
+    permissions: {}
     if: >-
       needs.pipeline-b-persona.outputs.broadcast_title != '' &&
       (needs.pipeline-a-syslog.outputs.chat_id != '' || needs.pipeline-a-syslog.outputs.sender_open_id != '')