Missing NetworkPolicy for Init Container

[Daniel]

Describe the bug
The init container of the injector can't connect to $releasename.vault.svc:8200

An additional NetworkPolicy is required.

To Reproduce
Steps to reproduce the behavior:

1. Install chart
2. Use the agent injector
3. See error

testdeployment-79c87f598b-n5gts vault-agent-init 2023-08-17T09:48:30.272Z [ERROR] agent.auth.handler: error authenticating: error="Put \"[http://vault-deployment.vault.svc:8200/v1/auth/kubernetes/login\](http://vault-deployment.vault.svc:8200/v1/auth/kubernetes/login%5C)": dial tcp [172.17.32.81:8200](http://172.17.32.81:8200/): i/o timeout" backoff=1s

Expected behavior
I expected that the helm chart would create the required NetworkPolicy which allows other Namespaces to connect.

Environment
OpenShift 4.10.61
Chart version 0.25.0

Additional context
With this NetworkPolicy it worked:

---
kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
  name: agent-injector-access
  namespace: vault
spec:
  podSelector:
    matchLabels:
      app.kubernetes.io/instance: vault-deployment
      app.kubernetes.io/name: vault
  ingress:
    - ports:
        - protocol: TCP
          port: 8200
      from:
        - namespaceSelector: {}
  policyTypes:
    - Ingress