Set lifecycle on ElasticIP and NAT Gateway tasks to avoid spurious changes

[KashifSaadat]

Identified in issue #476
Extension of fixes within PR #3226

[k8s-ci-robot]

Hi @KashifSaadat. Thanks for your PR.

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[KashifSaadat]

/assign @justinsb

[chrislovecnm]

/lgtm
/ok-to-test
/approve

[k8s-github-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: KashifSaadat, chrislovecnm

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[chrislovecnm]

I think we need one command for the munger to do all the above commands

[KashifSaadat]

Thanks! Yeah that would be handy :)

[k8s-github-robot]

/test all [submit-queue is verifying that this PR is safe to merge]

[k8s-github-robot]

Automatic merge from submit-queue