fix(backend): get pipeline by name is broken due to version typo, Fixes #9940

[cybernagle]

function getPipelineByName have a version typo:
V2beta1 -> v2beta1

thanks for @Jimmyshao 's help to find out this issue.
Description of your changes:

Checklist:

• The title for your pull request (PR) should follow our title convention. Learn more about the pull request title convention used in this repository.

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

[google-oss-prow]

Hi @cybernagle. Thanks for your PR.

I'm waiting for a kubeflow member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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.

[chensun]

/ok-to-test

[chensun]

/lgtm

[chensun]

/retest-required

[google-oss-prow]

@cybernagle: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
kubeflow-pipelines-sdk-yapf	8bdae7f	link	true	/test kubeflow-pipelines-sdk-yapf

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. I understand the commands that are listed here.

[chensun]

@cybernagle Can you please sign the CLA following the the instruction, also split the SDK change out as a separate PR? Thanks!

[chensun]

/test kubeflow-pipeline-upgrade-test

[cybernagle]

@cybernagle Can you please sign the CLA following the the instruction, also split the SDK change out as a separate PR? Thanks!

No problem, already sign the CLA & rolled back of SDK changes. and will raise another PR to do such feature.

[cybernagle]

@chensun please feel free to comment if you need me to change anything else. thanks a lot. :)

[chensun]

/lgtm

Thanks, @cybernagle !

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chensun

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• backend/OWNERS [chensun]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment