[WIP] Updated Argo to v2.4.1

[Ark-kun]

This change is 

[k8s-ci-robot]

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[Bobgy]

@Ark-kun I think you need to use my scripts here: #2393 to regenerate license.txt with this new version of argo and manually maintain repo-MPL.txt.

Also, the tag name v2.3.0-license-compliance was only meant to differentiate with existing gcr.io/ml-pipeline/argoexec:v2.3.0. Since we never tagged gcr.io/ml-pipeline/argoexec:v2.4.1 before, I recommend switching back to just use the same tag as argo images.

[Ark-kun]

/test kubeflow-pipeline-e2e-test

[Ark-kun]

/test kubeflow-pipeline-e2e-test

[Ark-kun]

/test kubeflow-pipeline-e2e-test

[IronPan]

@Ark-kun do you mind sharing more context why we need to bump the version in the description? are we relying on workflow template now？

[Ark-kun]

@Ark-kun do you mind sharing more context why we need to bump the version in the description? are we relying on workflow template now？

We're not relying on it. But Argo controller failed to start because WorkflowTemplate was missing/denied somewhere.
We can probably add it to fewer places, but it needs to be investigated.

[Ark-kun]

Here is the error I was getting:
github.com/argoproj/argo/workflow/controller/controller.go:157: Failed to list *v1alpha1.WorkflowTemplate: workflowtemplates.argoproj.io is forbidden: User "system:serviceaccount:kubeflow:argo" cannot list resource "workflowtemplates" in API group "argoproj.io" in the namespace "kubeflow"

[k8s-ci-robot]

@Ark-kun: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
kubeflow-pipeline-upgrade-test	2a5e9ee	link	/test kubeflow-pipeline-upgrade-test

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[Jeffwan]

@Ark-kun Seems most of the users are looking for 2.5.0 and above. Is there a chance we bump to that version or latest Argo directly?

[Ark-kun]

I've already upgraded Argo to v2.7.5