[release-4.19] WINC-1383: Bump use-trusted-artifact step memory

[openshift-cherrypick-robot]

This is an automated cherry-pick of #2833

/assign sebsoto

[openshift-ci-robot]

@openshift-cherrypick-robot: Ignoring requests to cherry-pick non-bug issues: WINC-1383

In response to this:

This is an automated cherry-pick of #2833

/assign sebsoto

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[openshift-ci]

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