infra: add notification to deploy action

.forgejo/workflows/deploy.yaml

@@ -20,3 +20,18 @@ jobs:
           ssh -i /tmp/ssh_key -o StrictHostKeyChecking=no ${{ vars.VPS_DEPLOY_USER }} "bash -c 'rm -rf /var/www/systemsobscure.blog/*'"
           scp -i /tmp/ssh_key -o StrictHostKeyChecking=no -r dist/* ${{ vars.VPS_DEPLOY_USER }}:/var/www/systemsobscure.blog/
           rm /tmp/ssh_key
+      - name: Notify success
+        if: success()
+        run: |
+          curl -u thomas:${{ secrets.NTFY_PASSWORD }} \
+               -H "Tags: Forgejo Runner" \
+               -d "🟩 systemsobscure.blog successfully deployed" \
+                https://ntfy.systemsobscure.net/test
+
+      - name: Notify failure
+        if: failure()
+        run: |
+          curl -u thomas:${{ secrets.NTFY_PASSWORD }} \
+               -H "Tags: Forgejo Runner" \
+               -d "🟥 systemsobscure.blog deployment failed. See Forgejo Action logs." \
+                https://ntfy.systemsobscure.net/test