chore(networking): bump aws-cni to 1.19.0

[moshevayner]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):

Special notes for your reviewer:
https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.19.0

[moshevayner]

/retest

[moshevayner]

/retest

[hakman]

@moshevayner I think it's a bug related to tests. I can skip this.
/override pull-kops-e2e-k8s-gce-cilium

[k8s-ci-robot]

@hakman: Overrode contexts on behalf of hakman: pull-kops-e2e-k8s-gce-cilium

In response to this:

@moshevayner I think it's a bug related to tests. I can skip this.
/override pull-kops-e2e-k8s-gce-cilium

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[hakman]

Thanks! 😄

[k8s-ci-robot]

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