ci: fix helm test

Signed-off-by: Emilien Escalle <emilien.escalle@escemi.com>

Author: neilime

postal/ci/base-values.yaml

@@ -3,7 +3,7 @@
 # Consider using environment variables or secret management systems.
 global:
   # Example Rails secret key - REPLACE WITH ACTUAL SECRET IN PRODUCTION
-  railsSecretKey: ""
+  railsSecretKey: "ci-test-rails-secret-key"
   # Example signing key - REPLACE WITH ACTUAL PRIVATE KEY IN PRODUCTION
   signingKey: |
     # EXAMPLE PRIVATE KEY - DO NOT USE IN PRODUCTION
@@ -15,3 +15,16 @@ global:
 
 image:
   registry: fake.registry
+
+jobs:
+  initialize:
+    enable: false
+
+web:
+  replicaCount: 0
+
+smtp:
+  replicaCount: 0
+
+worker:
+  replicaCount: 0