修复 GitHub Actions 权限问题

.github/workflows/sync.yml

@@ -8,6 +8,10 @@ on:
     tags:
       - 'sync-*'
 
+# 授予写入权限
+permissions:
+  contents: write
+
 jobs:
   push-code:
     runs-on: ubuntu-latest
@@ -56,4 +60,4 @@ jobs:
           echo "" >> $GITHUB_STEP_SUMMARY
           echo "- **标签**: ${{ steps.tag_info.outputs.tag_name }}" >> $GITHUB_STEP_SUMMARY
           echo "- **Commit**: ${{ steps.tag_info.outputs.commit_sha }}" >> $GITHUB_STEP_SUMMARY
-          echo "- **时间**: $(date)" >> $GITHUB_STEP_SUMMARY
+          echo "- **时间**: $(date)" >> $GITHUB_STEP_SUMMARY