Add dependency update for Cluster Addons

[jschoone]

/kind feature

CSO does helm template without updating dependencies so they must be present in Cluster Stacks which is probably not the best practice.

Describe the solution you'd like
Cluster Stack releases should not contain dependency charts dir.

Anything else you would like to add:
🐢

Environment:

• cluster-stack-operator version:
• Kubernetes version: (use kubectl version)
• OS (e.g. from /etc/os-release):

[garloff]

Definitely like this proposal.