🔐(helm) configure Brevo marketing tool

Using VaultWarden, added a dev Brevo API key.
In the "dev" stack, enable Brevo to validate new users are signed-up
to the marketing emails.

src/helm/env.d/dev/values.meet.yaml.gotmpl

@@ -9,6 +9,11 @@ secrets:
     field: password
     podVariable: OIDC_RP_CLIENT_SECRET
     clusterSecretStore: bitwarden-login-meet
+  - name: brevoApiKey
+    itemId: 99107889-6124-4436-97cc-a5193f28443f
+    field: password
+    podVariable: BREVO_API_KEY
+    clusterSecretStore: bitwarden-login-meet
 image:
   repository: localhost:5001/meet-backend
   pullPolicy: Always
@@ -78,6 +83,12 @@ backend:
     RECORDING_STORAGE_EVENT_TOKEN: password
     SUMMARY_SERVICE_ENDPOINT: http://meet-summary:80/api/v1/tasks/
     SUMMARY_SERVICE_API_TOKEN: password
+    SIGNUP_NEW_USER_TO_MARKETING_EMAIL: True
+    BREVO_API_KEY:
+      secretKeyRef:
+        name: backend
+        key: BREVO_API_KEY
+    BREVO_API_CONTACT_LIST_IDS: 8
 
 
   migrate: