Added webhook for deployment fail

Author: WangRyan408

.github/workflows/deploy.yml

@@ -30,5 +30,13 @@ jobs:
       - name: Deploy Site
         run: ssh my-droplet '~/redeploy-site.sh'
 
-      - name: Discord Webhook
-        run: curl -s -X POST "${{ secrets.DISCORD_WEBHOOK }}" -d "content=🚀 Deployment Successful"
+      - name: Discord Webhook Success
+        run: curl -s -X POST "${{ secrets.DISCORD_WEBHOOK }}" -d "content=🚀 Deployment Successful"
+  
+  deploy-fail:
+      runs-on: ubuntu-latest
+      needs: [deploy]
+      if: ${{ always() && contains(needs.*.result, 'failure') }}
+      steps:
+        - name: Discord Webhook Fail
+          run: curl -s -X POST "${{ secrets.DISCORD_WEBHOOK }}" -d "content=🚨 Deployment Failed"