Install helm in the gitpod container

[adamfordyce11]

Is your feature request related to a problem? Please describe

As a devops engineer I would like to be able to launch the template-k3s gitpod and install helm charts into the k3s kubernetes installation.

Describe the behaviour you'd like

After the git pod first boots up I would like to be able to find helm in the path and be able to use it to interact with the running k3s instance.

Describe alternatives you've considered

None

Additional context

None