Reduce load of Job integration test

[alculquicondor]

What type of PR is this?

/kind bug
/kind flake

What this PR does / why we need it:

The timeout for this test is only 30s, which in 1.23 is sometimes not enough to process all the pods.
Even after this change, we are still testing with lots of pods, which should be enough to spot potential problems.

Which issue(s) this PR fixes:

Fixes #114259

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Test-only change.

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

Please note that we're already in Test Freeze for the release-1.26 branch. This means every merged PR will be automatically fast-forwarded via the periodic ci-fast-forward job to the release branch of the upcoming v1.26.0 release.

Fast forwards are scheduled to happen every 6 hours, whereas the most recent run was: Fri Dec 2 15:44:06 UTC 2022.

[k8s-ci-robot]

@alculquicondor: This issue is currently awaiting triage.

If a SIG or subproject determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

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[alculquicondor]

/sig apps
/assign @aojea

[aojea]

/lgtm
/approve

ping @kubernetes/release-managers

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alculquicondor, aojea

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

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Needs approval from an approver in each of these files:

• test/integration/job/OWNERS [alculquicondor,aojea]

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[aojea]

/assign @liggitt

for advice on how to handle this

[liggitt]

/assign @liggitt

for advice on how to handle this

The change lgtm, no strong opinions about merge order between this and release branches, will defer to release managers on whether they want to merge to release-1.23 to clean up signal there first

[alculquicondor]

/hold
for successful runs on #114264

[alculquicondor]

/hold cancel

[alculquicondor]

@aojea for lgtm

[aojea]

/lgtm