Skip ExternalTrafficPolicy short-circuit test in cloud-provider-azure multi-zone-vmss-capz job

[willie-yao]

The cloud-provider-azure-conformance-multi-zone-vmss-capz job is failing on
[sig-network] Services should implement NodePort and HealthCheckNodePort correctly when ExternalTrafficPolicy changes.

The test asserts that source IP is preserved through kube-proxy's
externalTrafficPolicy=Local short-circuit path, which is incompatible with
CAPZ's default Calico VXLAN encapsulation (the source IP gets rewritten to the
node's vxlan.calico tunnel address).

Only this job is affected because it uses WORKER_MACHINE_COUNT: "3"; the test
requires ≥3 schedulable workers and is skipped automatically elsewhere.

Refs: kubernetes-sigs/cloud-provider-azure#9863, kubernetes-sigs/cluster-api-provider-azure#6252

[willie-yao]

/assign @nilo19

[nilo19]

/lgtm

[andyzhangx]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyzhangx, willie-yao

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• config/jobs/kubernetes-sigs/cloud-provider-azure/OWNERS [andyzhangx]

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[k8s-ci-robot]

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

• key cloud-provider-azure-config.yaml using file config/jobs/kubernetes-sigs/cloud-provider-azure/cloud-provider-azure-config.yaml

Details

In response to this:

The cloud-provider-azure-conformance-multi-zone-vmss-capz job is failing on
[sig-network] Services should implement NodePort and HealthCheckNodePort correctly when ExternalTrafficPolicy changes.

The test asserts that source IP is preserved through kube-proxy's
externalTrafficPolicy=Local short-circuit path, which is incompatible with
CAPZ's default Calico VXLAN encapsulation (the source IP gets rewritten to the
node's vxlan.calico tunnel address).

Only this job is affected because it uses WORKER_MACHINE_COUNT: "3"; the test
requires ≥3 schedulable workers and is skipped automatically elsewhere.

Refs: kubernetes-sigs/cloud-provider-azure#9863, kubernetes-sigs/cluster-api-provider-azure#6252

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