ci: add MS Teams notifications (#43)

.github/workflows/cron.yml

@@ -72,4 +72,16 @@ jobs:
             javadb.tar.gz:application/vnd.aquasec.trivy.javadb.layer.v1.tar+gzip
           
             echo "Pushed to ${full_registry_url}"
-          done
+          done
+
+      - name: Microsoft Teams Notification
+        ## Until the PR with the fix for the AdaptivCard version is merged yet
+        ## https://github.com/Skitionek/notify-microsoft-teams/pull/96
+        ## Use the aquasecurity fork
+        uses: aquasecurity/notify-microsoft-teams@master
+        if: failure()
+        with:
+          webhook_url: ${{ secrets.TRIVY_MSTEAMS_WEBHOOK }}
+          needs: ${{ toJson(needs) }}
+          job: ${{ toJson(job) }}
+          steps: ${{ toJson(steps) }}