chore: assigned the copyright to the project authors

[Ark-kun]

Google's Open Source Programs team has approved the assignment of the copyright to the project authors as requested by the Google's open-source guidelines: https://opensource.google/docs/releasing/authors/

Update the copyright statements in your LICENSE file and all file headers to list “The [Project] Authors” rather than “Google”:
Before: Copyright 2014 Google LLC
After: Copyright 2014 The [Project Name] Authors.

Fixes #5470

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[Ark-kun]

/test kubeflow-pipelines-samples-v2

[google-oss-robot]

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

Test name	Commit	Details	Rerun command
kubeflow-pipelines-samples-v2	4189507	link	/test kubeflow-pipelines-samples-v2

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[Bobgy]

v2 sample test is failing, we can skip it

[Bobgy]

/lgtm
/approve
Thank you for the update!

[google-oss-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Bobgy

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