feat: define test for pipelines in airgapped

[NohaIhab]

part of #898

Summary

• adds a notebook with a sample pipeline to test in airgapped
• adds the pipelines-runner image to use in the test
• adds README.md for pipelines test
• adds README.md for pipelines-runner image
• modifies the get-all-images.sh script to include the pipelines-runner image

[kimwnasptd]

LGTM and the notebook is as expected from
https://github.com/kubeflow/pipelines/blob/2.0.5/samples/tutorials/Data%20passing%20in%20python%20components/Data%20passing%20in%20python%20components%20-%20Files.py

I'll hold the merge until #908, #907 and #904 are merged, to test this one as well

[misohu]

I am not sure if we are really closing #898. The issue says here that we want to test also other components like Katib, Kserve. I think its important to cover katib because of the problems we were facing with EKS AKS UATs. Will there be some othe PRS to follow?

[NohaIhab]

@misohu indeed this PR does not close the issue, it is planned to have follow-up PRs for other components.

[misohu]

Good job :)