Update main.yml

.github/workflows/main.yml

@@ -23,8 +23,8 @@ jobs:
     steps:
       - name: install email tool
         run: |
-          yum install -y
-          yum install -y curl sendmail
+          sudo apt update -y
+          sudo apt install -y sendmail
       - name: send email
         env: 
           SMTP_SERVER: ${{ secrets.SMTP_SERVER }}