image-builder/capg: move prow job to the image-builder directory

[cpanato]

followup of: #22041 (comment)

• move the job out from the wg-infra and adding in the image-builder directory
• Also reduce the job build time for 2 hours to validate if everything works

/assign @ameukam @spiffxp @codenrhoden

[k8s-ci-robot]

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[k8s-ci-robot]

@cpanato: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-test-infra-bazel	82a72e4	link	/test pull-test-infra-bazel

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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[cpanato]

closing, the job need to stay there
/close

[k8s-ci-robot]

@cpanato: Closed this PR.

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In response to this:

closing, the job need to stay there
/close

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