Added test framework build pipeline

[suyadav1]

This pipeline will be used to run the e2e ginkgo tests on the ci-cd cluster: Monitoring-Model-Cluster-WEU with the help of testkube.
To add/change a cluster, we need to add multiple jobs (one for each cluster) to the pipeline.

Pre-requisite:
Before running the pipeline on a cluster, install the helm chart on your cluster:

helm repo add kubeshop https://kubeshop.github.io/helm-charts
helm install --create-namespace testkube kubeshop/testkube --version 1.15.17 -n testkube

ToDo:
Take list of the cluster from a variable and iterate over it to add jobs dynamically.

Tests done:
Local test pipeline worked as expected.

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.