add ntfy alertmanager bridge

clusters/cl01tl/monitoring/kube-prometheus-stack/Chart.yaml

@@ -19,5 +19,13 @@ dependencies:
   - name: kube-prometheus-stack
     version: 72.5.0
     repository: https://prometheus-community.github.io/helm-charts
+  - name: app-template
+    alias: ntfy-alertmanager
+    repository: https://bjw-s-labs.github.io/helm-charts/
+    version: 4.0.1
+  - name: valkey
+    alias: valkey-ntfy-alertmanager
+    version: 3.0.6
+    repository: oci://harbor.alexlebens.net/proxy-registry-1.docker.io/bitnamicharts
 icon: https://cdn.jsdelivr.net/gh/selfhst/icons/png/prometheus.png
 appVersion: v0.82.0