Create a default restrictive network policy

[wajihyassine]

Name and Version

charts/osdfir-infrastructure

What is the problem this feature will solve?

Having a more secure deployment by further preventing any unwanted traffic

What is the feature you are proposing to solve the problem?

Enable K8s network policies: https://kubernetes.io/docs/concepts/services-networking/network-policies/

This would need to be tested within the main OSDFIR Infrastructure chart to ensure that connections between the various services still function (e.g. Redis to Turbinia worker and Yeti to Timesketch)

What alternatives have you considered?

No response