chore(apps/gcp/prow): update docker image of cherry-picker plugin to v2.4.4

[wuhuizuo]

Ref: ti-community-infra/tichi#1188

[ti-chi-bot]

I have already done a preliminary review for you, and I hope to help you do a better job.

Based on the pull request title and description, the key change in this pull request is updating the docker image of the cherry-picker plugin from v2.4.2 to v2.4.4.

Overall, there are no potential problems with this pull request as it is a straightforward update of the docker image. However, it is always a good practice to double-check the updated image and verify that it works as expected.

As for fixing suggestions, I suggest running tests against the updated image to ensure that there are no issues. Additionally, it is also advisable to update the documentation or any other relevant files that reference the previous version of the cherry-picker plugin.

[wuhuizuo]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: wuhuizuo

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