[bug] Integration test failed after the 2.1.0 release commit

[Tomcli]

Environment

• How do you deploy Kubeflow Pipelines (KFP)?
  Running unit tests on 2.1.0 branch
• KFP version:
  2.1.0
• KFP SDK version:
  2.7.0

Steps to reproduce

After the 2.1.0 release, all the API integration tests are failing which causes all the current backend PRs to fail too.
e.g. FAIL github.com/kubeflow/pipelines/backend/src/common/client/api_server/v1

Before the 2.1.0 release commit, the backend API didn't change and the integration test works fine.

Expected result

Materials and reference

Labels

---

Impacted by this bug? Give it a 👍.

[Tomcli]

Hi @chensun, the 2.1.0 release commit updated the backend API package, but the integration test is not updated to test against the new changes. So right now all the backend PRs are failing at the integration tests.
f328f0b

[chensun]

I commented on #10631 (comment)

[HumairAK]

/assign gmfrasca

[google-oss-prow]

@HumairAK: GitHub didn't allow me to assign the following users: gmfrasca.

Note that only kubeflow members with read permissions, repo collaborators and people who have commented on this issue/PR can be assigned. Additionally, issues/PRs can only have 10 assignees at the same time.
For more information please see the contributor guide

In response to this:

/assign gmfrasca

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.