fix(alertmanager): 🔧 Update email recipient for alerts

Update the email address for alert notifications in the Alertmanager configuration to ensure correct delivery.

This change addresses a potential misrouting of alert emails by correcting the recipient address.

otc/observability.t09.de/stacks/observability/victoria-k8s-stack/values.yaml

@@ -554,7 +554,7 @@ alertmanager:
               name: email-user-credentials
               key: connection-string
             from: '"IPCEI CIS DevFW" <ipcei-cis-devfw@mms-support.de>'
-            to: '8e366475.mg.telekom.de@de.teams.ms'
+            to: 'f9f9953a.mg.telekom.de@de.teams.ms'
             headers:
               subject: 'Grafana Mail Alerts'
             require_tls: false