Enable image preloading in all scalability tests.

[mborsz]

As described in #19710 (comment)

After having few green runs in periodics for each minor, let's move NODE_PRELOAD_IMAGES to preset-e2e-scalability-common and preset-e2e-kubemark-common.

The expected diff is: adding this env to presubmits (which should be safe as we already tested in CI).

/assign @wojtek-t

[wojtek-t]

/lgtm
/approve

/hold - let's wait with submitting until Monday

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mborsz, wojtek-t

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[mborsz]

/assign @tosi3k

[tosi3k]

/lgtm
/unhold

[k8s-ci-robot]

@mborsz: Updated the job-config configmap in namespace default at cluster test-infra-trusted using the following files:

• key sig-scalability-presets.yaml using file config/jobs/kubernetes/sig-scalability/sig-scalability-presets.yaml

In response to this:

As described in #19710 (comment)

After having few green runs in periodics for each minor, let's move NODE_PRELOAD_IMAGES to preset-e2e-scalability-common and preset-e2e-kubemark-common.

The expected diff is: adding this env to presubmits (which should be safe as we already tested in CI).

/assign @wojtek-t

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