ENG-13649: Add initial Helm template

[antoniomrfranco]

Description of the change

Helm template to deploy the single container sidecar on Kubernetes.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklists

Development

• Lint rules pass locally
• The code changed/added as part of this pull request has been covered with tests
• All tests related to the changed code pass in development

Code review

• This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• Jira issue referenced in commit message and/or PR title

Testing

• Deployed to multiple K8s environments: minikube, GKE, and EKS.

[ptcar2009]

Looks good in general, some general comments and questions.

One thing that jumped to me is, are we planning on running any CI on this? We could do some chart testing and further linting, as we do in the control plane. You could use something similar to this: https://github.com/cyralinc/controlplane-templates/pull/2973/files#diff-e6063f06e3a63c0129659d95ef7bab13593d05cb60671234d42005e30e97fc9a

[jrich523]

any reason for the inconsistency in the copyright on the files? seems like some have it and others dont?

[ptcar2009]

Looks good to me