telegram vuln notification

.gitea/workflows/vulnscan.yaml

@@ -26,4 +26,17 @@ jobs:
 
       # if some vulnerability is found, we fail
       - name: check output
-        run: if [ $(jq '.Results[0].Vulnerabilities|length' trivy-results.json) -ne "0" ] ; then exit 1 ; fi
+        id: vulncount
+        run: |
+          echo "VULNCOUNT=$(jq '.Results[0].Vulnerabilities|length' trivy-results.json)" >> ${GITHUB_OUTPUT}
+          if [ $(jq '.Results[0].Vulnerabilities|length' trivy-results.json) -ne "0" ] ; then exit 1 ; fi
+
+      - name: send telegram notification
+        if: failure()
+        uses: appleboy/telegram-action@master
+        with:
+          to: ${{ secrets.TELEGRAM_TO }}
+          token: ${{ secrets.TELEGRAM_TOKEN }}
+          format: markdown
+          message: |
+            Found **${{ steps.vulncount.outputs.VULNCOUNT }}** vulnerabilities in `${{ github.repository }}`