Lower accelerator specific cit-peridiocs to once per day

[a-crate]

We have limited capacity, we need to be more economical with how we use it. This is enough for a regression signal.

This should help our image builds find capacity more easily.

/cc @zmarano @lpleahy

[google-oss-prow]

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[a-crate]

Update to use the cron field so we can force it run at 8PM.

[zmarano]

/lgtm

[google-oss-prow]

@a-crate: Updated the job-config configmap in namespace default at cluster default using the following files:

• key gcp-guest-config.yaml using file prow/prowjobs/GoogleCloudPlatform/gcp-guest/gcp-guest-config.yaml

In response to this:

We have limited capacity, we need to be more economical with how we use it. This is enough for a regression signal.

This should help our image builds find capacity more easily.

/cc @zmarano @lpleahy

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