[ 6° ] - Release/v1.0.0 create helm test: prepared helm test workflow to verify that a released helm chart work as expected

[saudkhan116]

Why we create this PR?

• Prepared helm-test workflow to verify that a released helm chart works as expected. The workflow performs the following steps:

  • Build all necessary container images / pull the container image under test
  • Create kind setup (kind creates a kubernetes cluster through container images, github action supports this which allows you to create a kubernetes cluster inside the github action run)
  • Make the necessary container images available through the kind setup (see github action example, it uses the local kind registry)
  • Prepare and execute helm test
  • Fail on a failing helm test

• Prepared test-dpp-connection.yaml to test the helm chart.

• Fixed indentation issue in a helm values.yaml file.

What we want to achieve with this PR?

To comply with the TRG-5.09 requirement.

What is new?

Added

• Prepared helm-test workflow to verify that a released helm chart works as expected.

Issue Fixed

• Fixed indentation issue in a helm default values file.