what the meaning of the character '|' after 'run: ' in the yml file of github action? i need to understand that.thanks here is code seg:
name: npm install run: | npm install env: CI: true
# 运行脚本 - name: 运行脚本 run: | COOKIE='${{ secrets.COOKIE }}' DINGTALK_WEBHOOK='${{ secrets.DINGTALK_WEBHOOK }}' DINGTALK_SECRET='${{ secrets.DINGTALK_SECRET }}' ALL_IN='${{ secrets.ALL_IN }}' WX_COMPANY_ID='${{ secrets.WX_COMPANY_ID }}' WX_APP_ID='${{ secrets.WX_APP_ID }}' WX_APP_SECRET='${{ secrets.WX_APP_SECRET }}' FEISHU_WEBHOOK='${{ secrets.FEISHU_WEBHOOK }}' FEISHU_SECRET='${{ secrets.FEISHU_SECRET }}' npm start env: CI: true